Dustin Stuart

Dustin Stuart

University of Oxford

H-index: 174

Europe-United Kingdom

Dustin Stuart Information

University

University of Oxford

Position

Research assistant

Citations(all)

112783

Citations(since 2020)

56100

Cited By

3944

hIndex(all)

174

hIndex(since 2020)

112

i10Index(all)

814

i10Index(since 2020)

670

Email

University Profile Page

University of Oxford

Dustin Stuart Skills & Research Interests

Laser cooling

Quantum information

Top articles of Dustin Stuart

The forward physics facility at the high-luminosity LHC

Authors

Jonathan L Feng,Felix Kling,Mary Hall Reno,Juan Rojo,Dennis Soldin,Luis A Anchordoqui,Jamie Boyd,Ahmed Ismail,Lucian Harland-Lang,Kevin J Kelly,Vishvas Pandey,Sebastian Trojanowski,Yu-Dai Tsai,Jean-Marco Alameddine,Takeshi Araki,Akitaka Ariga,Tomoko Ariga,Kento Asai,Alessandro Bacchetta,Kincso Balazs,Alan J Barr,Michele Battistin,Jianming Bian,Caterina Bertone,Weidong Bai,Pouya Bakhti,A Baha Balantekin,Basabendu Barman,Brian Batell,Martin Bauer,Brian Bauer,Mathias Becker,Asher Berlin,Enrico Bertuzzo,Atri Bhattacharya,Marco Bonvini,Stewart T Boogert,Alexey Boyarsky,Joseph Bramante,Vedran Brdar,Adrian Carmona,David W Casper,Francesco Giovanni Celiberto,Francesco Cerutti,Grigorios Chachamis,Garv Chauhan,Matthew Citron,Emanuele Copello,Jean-Pierre Corso,Luc Darmé,Raffaele Tito D’Agnolo,Neda Darvishi,Arindam Das,Giovanni De Lellis,Albert De Roeck,Jordy De Vries,Hans P Dembinski,Sergey Demidov,Patrick DeNiverville,Peter B Denton,Frank F Deppisch,PS Bhupal Dev,Antonia Di Crescenzo,Keith R Dienes,Milind V Diwan,Herbi K Dreiner,Yong Du,Bhaskar Dutta,Pit Duwentäster,Lucie Elie,Sebastian AR Ellis,Rikard Enberg,Yasaman Farzan,Max Fieg,Ana Luisa Foguel,Patrick Foldenauer,Saeid Foroughi-Abari,Jean-François Fortin,Alexander Friedland,Elina Fuchs,Michael Fucilla,Kai Gallmeister,Alfonso Garcia,Carlos A García Canal,Maria Vittoria Garzelli,Rhorry Gauld,Sumit Ghosh,Anish Ghoshal,Stephen Gibson,Francesco Giuli,Victor P Gonçalves,Dmitry Gorbunov,Srubabati Goswami,Silvia Grau,Julian Y Günther,Marco Guzzi,Andrew Haas,Timo Hakulinen,Steven P Harris,Julia Harz,Juan Carlos Helo Herrera,Christopher S Hill,Martin Hirsch,Timothy J Hobbs,Stefan Höche,Andrzej Hryczuk,Fei Huang,Tomohiro Inada,Angelo Infantino,Ameen Ismail,Richard Jacobsson,Sudip Jana,Yu Seon Jeong,Tomas Ježo,Yongsoo Jho,Krzysztof Jodłowski,Dmitry Kalashnikov,Timo J Kärkkäinen,Cynthia Keppel,Jongkuk Kim,Michael Klasen,Spencer R Klein,Pyungwon Ko,Dominik Köhler,Masahiro Komatsu,Karol Kovařík,Suchita Kulkarni,Jason Kumar,Karan Kumar,Jui-Lin Kuo,Frank Krauss,Aleksander Kusina,Maxim Laletin,Chiara Le Roux,Seung J Lee,Hye-Sung Lee,Helena Lefebvre,Jinmian Li,Shuailong Li,Yichen Li,Wei Liu,Zhen Liu,Mickael Lonjon,Kun-Feng Lyu,Rafal Maciula,Roshan Mammen Abraham,Mohammad R Masouminia,Josh McFayden,Oleksii Mikulenko,Mohammed MA Mohammed

Journal

Journal of Physics G: Nuclear and Particle Physics

Published Date

2023/1/20

High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located several hundred meters from the ATLAS interaction point and shielded by concrete and rock, will host a suite of experiments to probe standard model (SM) processes and search for physics beyond the standard model (BSM). In this report, we review the status of the civil engineering plans and the experiments to explore the diverse physics signals that can be uniquely probed in the forward region. FPF experiments will be sensitive to a broad range of BSM physics through searches for new particle scattering or decay signatures and deviations from SM expectations in high statistics analyses with TeV neutrinos in this low-background environment. High statistics …

Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton–proton collisions at

Authors

Armen Tumasyan,W Adam,T Bergauer,M Dragicevic,J Erö,A Escalante Del Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,T Madlener,I Mikulec,FM Pitters,N Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Chekhovsky,A Litomin,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,N Van Remortel,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang

Journal

The European Physical Journal C

Published Date

2022/4/4

A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a boson. The search uses proton–proton collision data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 137, at a center-of-mass energy . No significant deviation from the standard model expectation is observed. Upper limits at 95% confidence level are set on model-independent Higgs boson decay branching fractions. Additionally, limits on dark photon and axion-like particle production, based on two specific models, are reported.

Upgrading the beam telescopes at the DESY II Test Beam Facility

Authors

H Augustin,R Diener,S Dittmeier,PM Freeman,J Hammerich,A Herkert,L Huth,D Immig,U Krämer,N Meyners,I Perić,O Schäfer,A Schöning,A Simancas,M Stanitzki,D Stuart,B Weinläder

Journal

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Published Date

2022/10/1

Abstract The DESY II Test Beam Facility is a key infrastructure for modern high energy physics detector development, providing particles with a small momentum spread in a range from 1 to 6 GeV to user groups eg from the LHC experiments and Belle II as well as generic detector R&D. Beam telescopes are provided in all three test beam areas as precise tracking reference without time stamping, with triggered readout and a readout time of> 115 μ s. If the highest available rates are used, multiple particles are traversing the telescopes within one readout frame, thus creating ambiguities that cannot be resolved without additional timing layers. Several upgrades are currently investigated and tested: Firstly, a fast monolithic pixel sensor, the TelePix, to provide precise track timing and triggering on a region of interest is proposed to overcome this limitation. The TelePix is a 180 nm HV-CMOS sensor that has been …

Search for electroweak production of charginos and neutralinos in proton-proton collisions at = 13 TeV

Authors

Georges Aad,Brad Abbott,Dale Charles Abbott,A Abed Abud,K Abeling,DK Abhayasinghe,SH Abidi,OS AbouZeid,NL Abraham,H Abramowicz,H Abreu,Y Abulaiti,BS Acharya,B Achkar,S Adachi,L Adam,L Adamczyk,L Adamek,J Adelman,M Adersberger,A Adiguzel,S Adorni,T Adye,AA Affolder,Y Afik,C Agapopoulou,MN Agaras,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,F Ahmadov,WS Ahmed,X Ai,G Aielli,S Akatsuka,TPA Åkesson,E Akilli,AV Akimov,K Al Khoury,GL Alberghi,J Albert,MJ Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,D Alexandre,T Alexopoulos,A Alfonsi,M Alhroob,B Ali,G Alimonti,J Alison,SP Alkire,C Allaire,BMM Allbrooke,BW Allen,PP Allport,A Aloisio,A Alonso,F Alonso,C Alpigiani,AA Alshehri,M Alvarez Estevez,D Álvarez Piqueras,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SP Santos,S Amoroso,CS Amrouche,F An,C Anastopoulos,N Andari,T Andeen,CF Anders,JK Anders,A Andreazza,V Andrei,CR Anelli,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,M Antonelli,DJA Antrim,F Anulli,M Aoki,J Aparisi Pozo,L Aperio Bella,G Arabidze,JP Araque,V Araujo Ferraz,R Araujo Pereira,C Arcangeletti,ATH Arce,FA Arduh,JF Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,A Artamonov,G Artoni,S Artz,S Asai,N Asbah,EM Asimakopoulou,L Asquith,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,K Augsten,G Avolio,R Avramidou,MK Ayoub,AM Azoulay,G Azuelos,MJ Baca,H Bachacou,K Bachas,M Backes,F Backman,P Bagnaia,M Bahmani,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,M Bajic,C Bakalis,OK Baker,PJ Bakker,D Bakshi Gupta,S Balaji,EM Baldin,P Balek,F Balli,WK Balunas,J Balz

Journal

The European Physical Journal C

Published Date

2020/2

A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139 fb of proton–proton collisions recorded by the ATLAS detector at the Large Hadron Collider at. Three R-parity-conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised for the first of these scenarios, but the results are also interpreted in the others. No significant deviations from the Standard Model expectations are observed and limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of the scenarios. For a massless lightest neutralino, masses up to 420 are excluded for the production of the lightest-chargino …

Inclusive and differential cross section measurements of single top quark production in association with a Z boson in proton-proton collisions at = 13 TeV

Authors

Aram Hayrapetyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Dave M Newbold,Wagner Carvalho,Nimmitha Karunarathna,Maciej Górski,Manuel Sommerhalder,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Elton Shumka,Alfredo Gurrola,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Joseph Lynn Dulemba,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Maria Giulia Ratti,Michael Tytgat,Robert Schöfbeck,Julia Vazquez Escobar,James Hirschauer,Andreas Nürnberg,Ho Fung Tsoi,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Polina Simkina,Vipin Bhatnagar,Zhen Hu,Hans Reithler,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Sergio Sánchez Navas,Manuel Calderon De La Barca Sanchez,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Georgios Daskalakis,Kin Ho Lo,Axel Buchot Perraguin,Andrés Abreu,Ernesto Migliore,Alexander Zotz,Tilman Rohe,Paul Schütze,Ece Asilar,Salvatore Nuzzo,Alexander Morton,Grace Cummings,Yasser Assran,Florian Joel J Bury,Gurkan Karaman,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,Liam Brennan,Irene Dutta,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Fabrizio Palla,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Roberval Walsh,Hugo Becerril Gonzalez,Vladimir Makarenko,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,George Stephans,Siqi Yuan,Luiz Mundim,Olena Karacheban,Alicia Calderon,Zhaozhong Shi,Kevin Black,Thomas Kress,Georgia Karapostoli,Samuel Lascio,Fotios Ptochos,Berkan Kaynak,Wei Wei,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,Abhishikth Mallampalli,Chenfeng Lu,Maria Cepeda,Mauricio Thiel,Dylan Blend,Cécile Caillol,Yannik Rath,John Paul Chou,Nihar Ranjan Saha,Orgho Neogi,Mohammed Mahmoud,Peicho Petkov,John Rotter,Davide Piccolo,Emanuel Pfeffer,Florian Rehm,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Qianying Guo,Patrice Verdier

Published Date

2023/9/25

Measurements of inclusive and normalized differential cross sections of the associated production of top quark-antiquark and bottom quark-antiquark pairs, ttbb, are presented. The results are based on data from proton-proton collisions collected by the CMS detector at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb− 1. The cross sections are measured in the lepton+ jets decay channel of the top quark pair, using events containing exactly one isolated electron or muon and at least five jets. Measurements are made in four fiducial phase space regions, targeting different aspects of the ttbb process. Distributions are unfolded to the particle level through maximum likelihood fits, and compared with predictions from several event generators. The inclusive cross section measurements of this process in the fiducial phase space regions are the most precise to date. In most cases, the measured inclusive cross sections exceed the predictions with the chosen generator settings. The only exception is when using a particular choice of dynamic renormalization scale, µR= 12 ni= t, t, b, b m1/4

Search for new physics in the lepton plus missing transverse momentum final state in proton-proton collisions at 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2022/7

A search for physics beyond the standard model (SM) in final states with an electron or muon and missing transverse momentum is presented. The analysis uses data from proton-proton collisions at a centre-of-mass energy of 13 TeV, collected with the CMS detector at the LHC in 2016–2018 and corresponding to an integrated luminosity of 138 fb− 1. No significant deviation from the SM prediction is observed. Model-independent limits are set on the production cross section of W’bosons decaying into lepton-plus-neutrino final states. Within the framework of the sequential standard model, with the combined results from the electron and muon decay channels a W’boson with mass less than 5.7 TeV is excluded at 95% confidence level. Results on a SM precision test, the determination of the oblique electroweak W parameter, are presented using LHC data for the first time. These results together with those from the …

Search for single production of a vector-like T quark decaying to a top quark and a Z boson in the final state with jets and missing transverse momentum at = 13 …

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang

Journal

Journal of High Energy Physics

Published Date

2022/5

A search is presented for single production of a vector-like T quark with charge 2/3 e, in the decay channel featuring a top quark and a Z boson, with the top quark decaying hadronically and the Z boson decaying to neutrinos. The search uses data collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb− 1 recorded at the CERN LHC in 2016–2018. The search is sensitive to a T quark mass between 0.6 and 1.8 TeV with decay widths ranging from negligibly small up to 30% of the T quark mass. Reconstruction strategies for the top quark are based on the degree of Lorentz boosting of its final state. At 95% confidence level, the upper limit on the product of the cross section and branching fraction for a T quark of small decay width varies between 15 and 602 fb, depending on its mass. For a T quark with decay widths between …

Administering an antidote to Schrödinger’s cat

Authors

Juan-Rafael Álvarez,Mark IJspeert,Oliver Barter,Ben Yuen,Thomas D Barrett,Dustin Stuart,Jerome Dilley,Annemarie Holleczek,Axel Kuhn

Published Date

2022/6/13

We present a technique that steers the measured state of a quantum superposition to a determined outcome by using feedback on the interference of two long, identical photons produced using 87 Rb atoms in cavities.

Intravenous ferric derisomaltose in patients with heart failure and iron deficiency in the UK (IRONMAN): an investigator-initiated, prospective, randomised, open-label, blinded …

Authors

Paul R Kalra,John GF Cleland,Mark C Petrie,Elizabeth A Thomson,Philip A Kalra,Iain B Squire,Fozia Z Ahmed,Abdallah Al-Mohammad,Peter J Cowburn,Paul WX Foley,Fraser J Graham,Alan G Japp,Rebecca E Lane,Ninian N Lang,Andrew J Ludman,Iain C Macdougall,Pierpaolo Pellicori,Robin Ray,Michele Robertson,Alison Seed,Ian Ford,Nicholas Boon,Shannon Amoils,Callum Chapman,Thomas G Diness,John McMurray,Richard Mindham,Pamela Sandu,Claes C Strom,Maureen Travers,Robert Wilcox,Allan Struthers,Patrick Mark,Christopher Weir,Elena Cowan,Charlotte Turner,Rosalynn Austin,Paula Rogers,Badri Chandrasekaran,Eva Fraile,Lynsey Kyeremeh,Lorraine McGregor,Joanna Osmanska,Barbara Meyer,Faheem Ahmad,Jude Fisher,Christina Summersgill,Katarzyna Adeniji,Rajkumar Chinnadurai,Lisa Massimo,Clare Hardman,Daisy Sykes,Sarah Frank,Simon Smith,Mohamed Anwar,Beth Whittington,Vennessa Sookhoo,Sinead Lyons,Janet Middle,Kay Housley,Andrew Clark,Jeanne Bulemfu,Christopher Critoph,Victor Chong,Stephen Wood,Benjamin Szwejkowski,Chim Lang,Jackie Duff,Susan MacDonald,Rebekah Schiff,Patrick Donnelly,Thuraia Nageh,Swapna Kunhunny,Roy Gardner,Marion McAdam,Elizabeth McPherson,Prithwish Banerjee,Eleanor Sear,Nigel Edwards,Jason Glover,Clare Murphy,Justin Cooke,Charles Spencer,Mark Francis,Iain Matthews,Hayley McKie,Andrew Marshall,Janet Large,Jenny Stratford,Piers Clifford,Christopher Boos,Philip Keeling,Debbie Hughes,Aaron Wong,Deborah Jones,Alex James,Rhys Williams,Stephen Leslie,Jim Finlayson,Andrew Hannah,Philip Campbell,John Walsh,Jane Quinn,Susan Piper,Sheetal Patale,Preeti Gupta,Victor Sim,Lucy Knibbs,Kristopher Lyons,Lana Dixon,Colin Petrie,Yuk-ki Wong,Catherine Labinjoh,Simon Duckett,Ian Massey,Henry Savage,Sofia Matias,Jonaifah Ramirez,Charlotte Manisty,Ifza Hussain,Rajiv Sankaranarayanan,Gershan Davis,Samuel McClure,John Baxter,Eleanor Wicks,Jolanta Sobolewska,Jerry Murphy,Ahmed Elzayat,Alastair Cooke,Jay Wright,Simon Williams,Amal Muthumala,Parminder Chaggar,Sue Webber,Gethin Ellis,Mandie Welch,Sudantha Bulugahapitiya,Thomas Jackson,Tapesh Pakrashi,Ameet Bakhai,Vinodh Krishnamurthy,Reto Gamma,Susan Ellery,Geraint Jenkins,Gladdys Thomas,Angus Nightingale,Nicola Greenlaw,Kirsty Wetherall,Ross Clarke,Christopher Graham

Journal

The Lancet

Published Date

2022/12/17

BackgroundFor patients with heart failure, reduced left ventricular ejection fraction and iron deficiency, intravenous ferric carboxymaltose administration improves quality of life and exercise capacity in the short-term and reduces hospital admissions for heart failure up to 1 year. We aimed to evaluate the longer-term effects of intravenous ferric derisomaltose on cardiovascular events in patients with heart failure.MethodsIRONMAN was a prospective, randomised, open-label, blinded-endpoint trial done at 70 hospitals in the UK. Patients aged 18 years or older with heart failure (left ventricular ejection fraction ≤45%) and transferrin saturation less than 20% or serum ferritin less than 100 μg/L were eligible. Participants were randomly assigned (1:1) using a web-based system to intravenous ferric derisomaltose or usual care, stratified by recruitment context and trial site. The trial was open label, with masked …

Evidence for X(3872) in Pb-Pb Collisions and Studies of its Prompt Production at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Martin Flechl,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Drugakov,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,L Moureaux,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Tom Cornelis,Didar Dobur,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,J Prisciandaro,A Saggio,P Vischia,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,H Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,P Rebello Teles,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,X Gao,L Yuan,M Ahmad,Z Hu,Y Wang,GM Chen,HS Chen,M Chen,CH Jiang

Journal

Physical review letters

Published Date

2022/1/19

The first evidence for X (3872) production in relativistic heavy ion collisions is reported. The X (3872) production is studied in lead-lead (Pb-Pb) collisions at a center-of-mass energy of s NN= 5.02 TeV per nucleon pair, using the decay chain X (3872)→ J/ψ π+ π−→ μ+ μ− π+ π−. The data were recorded with the CMS detector in 2018 and correspond to an integrated luminosity of 1.7 nb− 1. The measurement is performed in the rapidity and transverse momentum ranges| y|< 1.6 and 15< p T< 50 GeV/c. The significance of the inclusive X (3872) signal is 4.2 standard deviations. The prompt X (3872) to ψ 2 S yield ratio is found to be ρ Pb− Pb= 1.08±0.49 (stat)±0.52 (syst), to be compared with typical values of 0.1 for p p collisions. This result provides a unique experimental input to theoretical models of the X (3872) production mechanism, and of the nature of this exotic state.

Search for a W′ boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state at = 13 TeV

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Ece Asilar,Thomas Bergauer,Johannes Brandstetter,Marko Dragicevic,Janos Erö,Alberto Escalante Del Valle,Martin Flechl,Rudolf Fruehwirth,Vasile Mihai Ghete,Josef Hrubec,Manfred Jeitler,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Navid Rad,Herbert Rohringer,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Daniel Spitzbart,Anton Taurok,Wolfgang Waltenberger,Johannes Wittmann,C-E Wulz,Mateusz Zarucki,EA De Wolf,D Di Croce,X Janssen,J Lauwers,M Pieters,H Van Haevermaet,P Van Mechelen,S Abu Zeid,F Blekman,J D’Hondt,J De Clercq,K Deroover,G Flouris,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,L Moreels,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,D Beghin,B Bilin,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,AK Kalsi,T Lenzi,J Luetic,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Q Wang,T Cornelis,D Dobur,A Fagot,M Gul,I Khvastunov,D Poyraz,C Roskas,D Trocino,M Tytgat,W Verbeke,B Vermassen,M Vit,N Zaganidis,H Bakhshiansohi,O Bondu,S Brochet,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,G Krintiras,V Lemaitre,A Magitteri,K Piotrzkowski,A Saggio,M Vidal Marono,P Vischia,S Wertz,J Zobec,FL Alves,GA Alves,M Correa Martins Junior,G Correia Silva,C Hensel,A Moraes,ME Pol,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,H Malbouisson,D Matos Figueiredo,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,S Ahuja,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,SandraS Padula,A Aleksandrov,R Hadjiiska,P Iaydjiev,Andrey Marinov

Journal

Journal of High Energy Physics

Published Date

2019/3

A search for a heavy W′ resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb− 1 at TeV. Both decay channels result in a final state with a top quark, a Higgs boson, and ab quark, each produced with significant energy. The all-hadronic decays of both the Higgs boson and the top quark are considered. The final-state jets, some of which correspond to merged decay products of a boosted top quark and a Higgs boson, are selected using jet substructure techniques, which help to suppress standard model backgrounds. AW′ boson signal would appear as a narrow peak in the invariant mass distribution of these jets. No significant deviation in data with respect to the standard model background predictions is …

Search for long-lived heavy neutral leptons with displaced vertices in proton-proton collisions at =13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Martina Vit,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,Patricia Rebello Teles,Walter Luiz Aldá Júnior,Miguel Alves Gallo Pereira,Barroso Ferreira Filho,Helena Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,Dilson De Jesus Damiao,Sandro Fonseca De Souza,Clemencia Mora Herrera,Kevin Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,Sheila Mara Silva Do Amaral,Andre Sznajder,Mauricio Thiel,Felipe Torres Da Silva De Araujo,Antonio Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Tahir Javaid,Monika Mittal,Li Yuan,Muhammad Ahmad,Gerry Bauer,Candan Dozen,Zhen Hu,Jordan Martins,Yi Wang

Journal

Journal of High Energy Physics

Published Date

2022/7

A search for heavy neutral leptons (HNLs), the right-handed Dirac or Majorana neutrinos, is performed in final states with three charged leptons (electrons or muons) using proton-proton collision data collected by the CMS experiment at= 13 TeV at the CERN LHC. The data correspond to an integrated luminosity of 138 fb− 1. The HNLs could be produced through mixing with standard model neutrinos ν. For small values of the HNL mass (< 20 GeV) and the square of the HNL-ν mixing parameter (10− 7–10− 2), the decay length of these particles can be large enough so that the secondary vertex of the HNL decay can be resolved with the CMS silicon tracker. The selected final state consists of one lepton emerging from the primary proton-proton collision vertex, and two leptons forming a displaced, secondary vertex. No significant deviations from the standard model expectations are observed, and constraints are …

Measurement of the inclusive production cross section in proton-proton collisions at = 5.02 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Journal of High Energy Physics

Published Date

2022/4

The top quark pair production cross section is measured in proton-proton collisions at a center-of-mass energy of 5.02 TeV. The data were collected in a special LHC low-energy and low-intensity run in 2017, and correspond to an integrated luminosity of 302 pb− 1. The measurement is performed using events with one electron and one muon of opposite charge, and at least two jets. The measured cross section is 60. 7±5. 0 (stat)±2. 8 (syst)±1. 1 (lumi) pb. A combination with the result in the single lepton+ jets channel, based on data collected in 2015 at the same center-of-mass energy and corresponding to an integrated luminosity of 27.4 pb− 1, is then performed. The resulting measured value is 63. 0±4. 1 (stat)±3. 0 (syst+ lumi) pb, in agreement with the standard model prediction of pb.

Using Boson Events to Study Parton-Medium Interactions in Pb-Pb Collisions

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov

Journal

Physical review letters

Published Date

2022/3/23

The spectra measurements of charged hadrons produced in the shower of a parton originating in the same hard scattering with a leptonically decaying Z boson are reported in lead-lead nuclei (Pb-Pb) and proton-proton (p p) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Both Pb-Pb and p p data sets are recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 1.7 nb− 1 and 320 pb− 1, respectively. Hadronic collision data with one reconstructed Z boson candidate with the transverse momentum p T> 30 GeV/c are analyzed. The Z boson constrains the initial energy and direction of the associated parton. In heavy ion events, azimuthal angular distributions of charged hadrons with respect to the direction of a Z boson are sensitive to modifications of the in-medium parton shower and medium response. compared to reference data from p p interactions, the results …

Study of dijet events with large rapidity separation in proton-proton collisions at = 2.76 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,TT Tran,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanassov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Journal of High Energy Physics

Published Date

2022/3

The cross sections for inclusive and Mueller-Navelet dijet production are measured as a function of the rapidity separation between the jets in proton-proton collisions at= 2. 76 TeV for jets with transverse momentum p T> 35 GeV and rapidity| y|< 4. 7. Various dijet production cross section ratios are also measured. A veto on additional jets with p T> 20 GeV is introduced to improve the sensitivity to the effects of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) evolution. The measurement is compared with the predictions of various Monte Carlo models based on leading-order and next-to-leading-order calculations including the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi leading-logarithm (LL) parton shower as well as the LL BFKL resummation.

Observation of B0→ ψ (2S) K0Sπ+ π− and B0S→ ψ (2S) K0S decays

Authors

I Dutta,A Ledovskoy,A Li,C Neu,CE Lara,B Tannenwald,S White,N Poudyal,S Banerjee,K Black,T Bose,S Dasu,I De Bruyn,P Everaerts,C Galloni,H He,M Herndon,A Herve,U Hussain,A Lanaro,A Loeliger,R Loveless,J Madhusudanan Sreekala,A Mallampalli,A Mohammadi,D Pinna,A Savin,V Shang,V Sharma,WH Smith,D Teague,S Trembath-Reichert,W Vetens,Hale Sert,Çağlar ZORBİLMEZ,A Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,K Damanakis,M Dragicevic,A Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Júnior,M Pereira,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro

Published Date

2022

Observation of B0 → ψ(2S)K0Sπ+π− and B0S → ψ(2S)K0S decays Geçiş Yönlendirmesi Türkçe English Türkçe Türkçe English Giriş Geçiş Yönlendirmesi Öğe Göster Açık Erişim Ana Sayfası Avesis Dokümanı Olanlar Makale Öğe Göster Açık Erişim Ana Sayfası Avesis Dokümanı Olanlar Makale Öğe Göster Observation of B0 → ψ(2S)K0Sπ+π− and B0S → ψ(2S)K0S decays Tarih 2022 Yazar Dutta, I. Ledovskoy, A. Li, A. Neu, C. Lara, CE Perez Tannenwald, B. White, S. Poudyal, N. Banerjee, S. Black, K. Bose, T. Dasu, S. De Bruyn, I. Everaerts, P. Galloni, C. He, H. Herndon, M. Herve, A. Hussain, U. Lanaro, A. Loeliger, A. Loveless, R. Sreekala, J. Madhusudanan Mallampalli, A. Mohammadi, A. Pinna, D. Savin, A. Shang, V. Sharma, V. Smith, WH Teague, D. Trembath-Reichert, S. Vetens, W. Sert, Hale ZORBİLMEZ, Çağlar Tumasyan, A. Adam, W. Andrejkovic, JW Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M…

Search for new particles in an extended Higgs sector with four b quarks in the final state at s= 13TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,ES Bols,J D'Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Cesar Rendon,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Physics Letters B

Published Date

2022/12/10

A search for a massive resonance X decaying to a pair of spin-0 bosons ϕ that themselves decay to pairs of bottom quarks, is presented. The analysis is restricted to the mass ranges m ϕ from 25 to 100 GeV and m X from 1 to 3 TeV. For these mass ranges, the decay products of each ϕ boson are expected to merge into a single large-radius jet. Jet substructure and flavor identification techniques are used to identify these jets. The search is based on CERN LHC proton-proton collision data at s= 13 TeV, collected with the CMS detector in 2016–2018, corresponding to an integrated luminosity of 138 fb− 1. Model-specific limits, where the two new particles arise from an extended Higgs sector, are set on the product of the production cross section and branching fraction for X→ ϕ ϕ→(b b‾)(b b‾) as a function of the resonances' masses, where both the X→ ϕ ϕ and ϕ→ b b‾ branching fractions are assumed to be 100 …

Observation of Bs0 mesons and measurement of the Bs0/B+ yield ratio in PbPb collisions at TeV

Authors

Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang

Journal

Physics Letters B

Published Date

2022/6/10

The B s 0 and B+ production yields are measured in PbPb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The data sample, collected with the CMS detector at the LHC, corresponds to an integrated luminosity of 1.7 nb− 1. The mesons are reconstructed in the exclusive decay channels B→ s 0 J/ψ (μ+ μ−) ϕ (K+ K−) and B→+ J/ψ (μ+ μ−) K+, in the transverse momentum range 7–50 GeV/c and absolute rapidity 0–2.4. The B s 0 meson is observed with a statistical significance in excess of five standard deviations for the first time in nucleus-nucleus collisions. The measurements are performed as functions of the transverse momentum of the B mesons and of the PbPb collision centrality. The ratio of production yields of B s 0 and B+ is measured and compared to theoretical models that include quark recombination effects.

Search for higgsinos decaying to two Higgs bosons and missing transverse momentum in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Journal of High Energy Physics

Published Date

2022/5

Results are presented from a search for physics beyond the standard model in proton-proton collisions at= 13 TeV in channels with two Higgs bosons, each decaying via the process H→ b, and large missing transverse momentum. The search uses a data sample corresponding to an integrated luminosity of 137 fb− 1 collected by the CMS experiment at the CERN LHC. The search is motivated by models of supersymmetry that predict the production of neutralinos, the neutral partners of the electroweak gauge and Higgs bosons. The observed event yields in the signal regions are found to be consistent with the standard model background expectations. The results are interpreted using simplified models of supersymmetry. For the electroweak production of nearly mass-degenerate higgsinos, each of whose decay chains yields a neutralino\(\left ({\overset {\sim}{\upchi}} _1^ 0\right)\) that in turn decays to a …

Measurement of the inclusive and differential WZ production cross sections, polarization angles, and triple gauge couplings in pp collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2022/7

The associated production of a W and a Z boson is studied in final states with multiple leptons produced in proton-proton (pp) collisions at a centre-of-mass energy of 13 TeV using 137 fb− 1 of data collected with the CMS detector at the LHC. A measurement of the total inclusive production cross section yields σ tot (pp→ WZ)= 50. 6±0. 8 (stat)±1. 5 (syst)±1. 1 (lumi)±0. 5 (theo) pb. Measurements of the fiducial and differential cross sections for several key observables are also performed in all the final-state lepton flavour and charge compositions with a total of three charged leptons, which can be electrons or muons. All results are compared with theoretical predictions computed up to next-to-next-to-leading order in quantum chromodynamics plus next-to-leading or-der in electroweak theory and for various sets of parton distribution functions. The results include direct measurements of the charge asymmetry and the W …

Search for Higgs Boson Pair Production in the Four Quark Final State in Proton-Proton Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Physical review letters

Published Date

2022/8/18

A search for pairs of Higgs bosons produced via gluon and vector boson fusion is presented, focusing on the four b quark final state. The data sample consists of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC, and corresponds to an integrated luminosity of 138 fb− 1. No deviation from the background-only hypothesis is observed. A 95% confidence level upper limit on the Higgs boson pair production cross section is observed at 3.9 times the standard model prediction for an expected value of 7.8. Constraints are also set on the modifiers of the Higgs field self-coupling, κ λ, and of the coupling of two Higgs bosons to two vector bosons, κ 2 V. The observed (expected) allowed intervals at the 95% confidence level are− 2.3< κ λ< 9.4 (− 5.0< κ λ< 12.0) and− 0.1< κ 2 V< 2.2 (− 0.4< κ 2 V< 2.5). These are the most stringent observed constraints to date on the H H …

Search for long-lived particles decaying into muon pairs in proton-proton collisions at = 13 TeV collected with a dedicated high-rate data stream

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2022/4

A search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb− 1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95% confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long …

Search for strongly interacting massive particles generating trackless jets in proton–proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,J Suarez Gonzalez,Mohamed Rashad Darwish,Eddi A De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,N Van Remortel,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,Petra Van Mulders,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Brian Dorney,Laurent Favart,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Inna Makarenko,Louis Moureaux,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,C Vander Velde,Pascal Vanlaer,David Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Marek Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Martin Delcourt,Izzeddin Suat Donertas,Andrea Giammanco,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Pietro Vischia,Sébastien Wertz,Sophie Wuyckens,GA Alves,Carsten Hensel,Arthur Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eduardo Coelho,Eliza Melo Da Costa,Gustavo Gil Da Silveira,D De JesusDamiao,S Fonseca De Souza,Jordan Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,Luiz Mundim,Helio Nogima,P Rebello Teles,LJ Sanchez Rosas,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da SilvaDeAraujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Ivan Atanasov,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Wenxing Fang,Qianying Guo

Journal

The European Physical Journal C

Published Date

2022/3

A search for dark matter in the form of strongly interacting massive particles (SIMPs) using the CMS detector at the LHC is presented. The SIMPs would be produced in pairs that manifest themselves as pairs of jets without tracks. The energy fraction of jets carried by charged particles is used as a key discriminator to suppress efficiently the large multijet background, and the remaining background is estimated directly from data. The search is performed using proton–proton collision data corresponding to an integrated luminosity of 16.1, collected with the CMS detector in 2016. No significant excess of events is observed above the expected background. For the simplified dark matter model under consideration, SIMPs with masses up to 100 are excluded and further sensitivity is explored towards higher masses.

How to administer an antidote to Schrödinger’s cat

Authors

Juan-Rafael Álvarez,Mark IJspeert,Oliver Barter,Ben Yuen,Thomas D Barrett,Dustin Stuart,Jerome Dilley,Annemarie Holleczek,Axel Kuhn

Journal

Journal of Physics B: Atomic, Molecular and Optical Physics

Published Date

2022/3/17

In his 1935 Gedankenexperiment, Erwin Schrödinger imagined a box with a cat and a poisonous substance which has a 50% probability of being released, based on the decay of a radioactive atom. As such, the life of the cat and the state of the poison become entangled, and the fate of the cat is determined upon opening the box. We present an experimental technique that keeps the cat alive on any account. This method relies on the time-resolved Hong–Ou–Mandel effect: two long, identical photons impinging on a beam splitter always bunch in either of the outputs. Interpreting the first photon detection as the state of the poison, the second photon is identified as the state of the cat. Even after the collapse of the first photon's state, we show their fates are intertwined through quantum interference. We demonstrate this by a sudden phase change between the inputs, administered conditionally on the outcome of the …

A Modular X-ray Detector for Beamline Diagnostics at LANL

Authors

P Freeman,B Odegard,R Schmitz,D Stuart,J Yang,L Malavasi,J Bohon,M Gulley,E Huang,J Smedley

Published Date

2022

An X-ray detector is being developed for diagnostic measurement and monitoring of the Drift Tube LINAC (DTL) at the Los Alamos Neutron Science Center (LANSCE) at Los Alamos National Lab. The detector will consist of a row of X-ray spectrometers adjacent to the DTL which will measure the spectrum of X-rays resulting from bremsstrahlung of electrons created in vacuum by the RF. Two types of spectrometer modules are being developed. A large number (near 100) of inexpensive LYSO+ SiPM-based modules will be deployed to measure the rate and energy of gammas along the beam and at different azimuthal angles. A smaller number of LaBr+ PMT-based modules (one or two per DTL tank) will precisely measure the energy of X-rays at specific drift tube gaps in addition to reporting event rates. Initial prototypes were tested during a beam development period at the LANSCE DTL just prior to this conference (July 30-Aug 3) and also during the RF conditioning in April 2022. An MFR proposal has been submitted for the funding of further development and deployment of this X-ray detector.

Search for heavy resonances decaying to , , or boson pairs in a final state consisting of a lepton and a large-radius jet in proton-proton collisions at …

Authors

Armen Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,M Dragicevic,A Escalante Del Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical Review D

Published Date

2022/2/25

A search for new heavy resonances decaying to pairs of bosons (W W, W Z, or W H) is presented. The analysis uses data from proton-proton collisions collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb− 1. One of the bosons is required to be a W boson decaying to an electron or muon and a neutrino, while the other boson is required to be reconstructed as a single jet with mass and substructure compatible with a quark pair from a W, Z, or Higgs boson decay. The search is performed in the resonance mass range between 1.0 and 4.5 TeV and includes a specific search for resonances produced via vector boson fusion. The signal is extracted using a two-dimensional maximum likelihood fit to the jet mass and the diboson invariant mass distributions. No significant excess is observed above the estimated background. Model-independent upper …

Nuclear modification of Y states in pPb collisions at sNN= 5.02 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Martin Flechl,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Drugakov,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,T Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,L Moureaux,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,T Cornelis,D Dobur,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,J Prisciandaro,A Saggio,P Vischia,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,Hb Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,P Rebello Teles,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,X Gao,L Yuan,M Ahmad,Z Hu,Y Wang,GM Chen,HS Chen,M Chen,CH Jiang,D Leggat

Journal

Physics Letters B

Published Date

2022/12/10

Production cross sections of Image 1, Image 2, and Image 3 states decaying into Image 4 in proton-lead (p Pb) collisions are reported using data collected by the CMS experiment at s NN= 5.02 TeV. A comparison is made with corresponding cross sections obtained with p p data measured at the same collision energy and scaled by the Pb nucleus mass number. The nuclear modification factor for Image 1 is found to be Image 5. Similar results for the excited states indicate a sequential suppression pattern, such that Image 6. The suppression of all states is much less pronounced in p Pb than in PbPb collisions, and independent of transverse momentum Image 7 and center-of-mass rapidity Image 8 of the individual Image 9 state in the studied range Image 10 and Image 11. Models that incorporate final-state effects of bottomonia in pPb collisions are in better agreement with the data than those which only assume …

First Search for Exclusive Diphoton Production at High Mass with Tagged Protons in Proton-Proton Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,H Wang,L Yuan,M Ahmad,G Bauer,Z Hu

Journal

Physical review letters

Published Date

2022/6/28

A search for exclusive two-photon production via photon exchange in proton-proton collisions, p p→ p γ γ p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb− 1 collected in 2016 using the CMS and TOTEM detectors at a center-of-mass energy of 13 TeV at the LHC. Events are selected with a diphoton invariant mass above 350 GeV and with both protons intact in the final state, to reduce backgrounds from strong interactions. The events of interest are those where the invariant mass and rapidity calculated from the momentum losses of the forward-moving protons match the mass and rapidity of the central, two-photon system. No events are found that satisfy this condition. Interpreting this result in an effective dimension-8 extension of the standard model, the first limits are set on the two anomalous four-photon coupling parameters. If the other parameter is constrained to its …

Search for charged-lepton flavor violation in top quark production and decay in pp collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Martina Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2022/6

Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are required to contain one oppositely charged electron-muon pair in the final state, along with at least one jet identified as originating from a bottom quark. The data correspond to an integrated luminosity of 138 fb− 1, collected by the CMS experiment at the LHC. This analysis includes both the production (q→ eμt) and decay (t→ eμq) modes of the top quark through CLFV interactions, with q referring to au or c quark. These interactions are parametrized using an effective field theory approach. With no significant excess over the standard model expectation, the results are interpreted in terms of vector-, scalar-, and tensor-like CLFV four-fermion effective interactions. Finally, observed exclusion limits are set at 95% confidence …

Search for a heavy resonance decaying into a top quark and a W boson in the lepton+jets final state at = 13 TeV

Authors

Maria Canelli,Lea Caminada,Cristina Botta,Pascal Baertschi,Tiziano Bevilacqua,Danyyl Brzhechko,Kyle Cormier,Adinda Wit,Riccardo Del Burgo,Jaana Heikkilae,Marc Huwiler,Weijie Jin,Arash Jofrehei,Stefanos Leontsinis,Sascha Liechti,Anna Macchiolo,Peter Meiring,Marino Missiroli,Vinicius Mikuni,Umberto Molinatti,Izaak Neutelings,Lars Noehte,Giorgia Rauco,Arne Reimers,Peter Robmann,Sergio Sanchez Cruz,Korbinian Schweiger,Matias Senger,Yuta Takahashi,CMS Collaboration

Journal

Journal of High Energy Physics

Published Date

2022

A search for a heavy resonance decaying into a top quark and a W boson in proton-proton collisions at= 13 TeV is presented. The data analyzed were recorded with the CMS detector at the LHC and correspond to an integrated luminosity of 138 fb− 1. The top quark is reconstructed as a single jet and the W boson, from its decay into an electron or muon and the corresponding neutrino. A top quark tagging technique based on jet clustering with a variable distance parameter and simultaneous jet grooming is used to identify jets from the collimated top quark decay. The results are interpreted in the context of two benchmark models, where the heavy resonance is either an excited bottom quark b∗ or a vector-like quark B. A statistical combination with an earlier search by the CMS Collaboration in the all-hadronic final state is performed to place upper cross section limits on these two models. The new analysis …

Search for Flavor-Changing Neutral Current Interactions of the Top Quark and Higgs Boson in Final States with Two Photons in Proton-Proton Collisions at

Authors

Aram Hayrapetyan

Published Date

2023/12/11

A search for the production of a top quark in association with a photon and additional jets via flavor changing neutral current interactions is presented. The analysis uses proton-proton collision data recorded by the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb. The search is performed by looking for processes where a single top quark is produced in association with a photon, or a pair of top quarks where one of the top quarks decays into a photon and an up or charm quark. Events with an electron or a muon, a photon, one or more jets, and missing transverse momentum are selected. Multivariate analysis techniques are used to discriminate signal and standard model background processes. No significant deviation is observed over the predicted background. Observed (expected) upper limits are set on the branching fractions of top quark decays: (tu) 0.9510 (1.2010) and (tc) 1.5110 (1.5410) at 95% confidence level, assuming a single nonzero coupling at a time. The obtained limit for (tu) is similar to the current best limit, while the limit for (tc) is significantly tighter than previous results.

Measurement and QCD analysis of double-differential inclusive jet cross sections in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,Peicho Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Journal of High Energy Physics

Published Date

2022/2

A measurement of the inclusive jet production in proton-proton collisions at the LHC at= 13 TeV is presented. The double-differential cross sections are measured as a function of the jet transverse momentum p T and the absolute jet rapidity| y|. The anti-k T clustering algorithm is used with distance parameter of 0.4 (0.7) in a phase space region with jet p T from 97 GeV up to 3.1 TeV and| y|< 2. 0. Data collected with the CMS detector are used, corresponding to an integrated luminosity of 36.3 fb− 1 (33.5 fb− 1). The measurement is used in a comprehensive QCD analysis at next-to-next-to-leading order, which results in significant improvement in the accuracy of the parton distributions in the proton. Simultaneously, the value of the strong coupling constant at the Z boson mass is extracted as α S (m Z)= 0. 1170±0. 0019. For the first time, these data are used in a standard model effective field theory analysis at next-to …

Erratum to: Search for new physics in dijet angular distributions using proton-proton collisions at and constraints on dark matter and other models

Authors

AM Sirunyan,A Tumasyan,W Adam,F Ambrogi,E Asilar,T Bergauer,J Brandstetter,E Brondolin,M Dragicevic,J Erö,A Escalante Del Valle,M Flechl,M Friedl,R Frühwirth,VM Ghete,J Grossmann,J Hrubec,M Jeitler,A König,N Krammer,I Krätschmer,D Liko,T Madlener,I Mikulec,E Pree,N Rad,H Rohringer,J Schieck,R Schöfbeck,M Spanring,D Spitzbart,A Taurok,W Waltenberger,J Wittmann,C-E Wulz,M Zarucki,V Chekhovsky,V Mossolov,J Suarez Gonzalez,EA De Wolf,D Di Croce,X Janssen,J Lauwers,M Pieters,M Van De Klundert,H Van Haevermaet,P Van Mechelen,N Van Remortel,S Abu Zeid,F Blekman,J D’Hondt,I De Bruyn,J De Clercq,K Deroover,G Flouris,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,L Moreels,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,D Beghin,B Bilin,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,AK Kalsi,T Lenzi,J Luetic,T Seva,E Starling,C Vander Velde,P Vanlaer,D Vannerom,R Yonamine,T Cornelis,D Dobur,A Fagot,M Gul,I Khvastunov,D Poyraz,C Roskas,D Trocino,M Tytgat,W Verbeke,B Vermassen,M Vit,N Zaganidis,H Bakhshiansohi,O Bondu,S Brochet,G Bruno,C Caputo,A Caudron,P David,S De Visscher,C Delaere,M Delcourt,B Francois,A Giammanco,G Krintiras,V Lemaitre,A Magitteri,A Mertens,M Musich,K Piotrzkowski,L Quertenmont,A Saggio,M Vidal Marono,S Wertz,J Zobec,WL Aldá Júnior,FL Alves,GA Alves,L Brito,G Correia Silva,C Hensel,A Moraes,ME Pol,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,H Malbouisson,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote

Journal

The European Physical Journal C

Published Date

2022/4/29

Sirunyan, AM, Tumasyan, A., Adam, W. et al. Erratum to: Search for new physics in dijet angular distributions using proton-proton collisions at and constraints on dark matter and other models. Eur. Phys. J. C 82, 379 (2022). https://doi. org/10.1140/epjc/s10052-022-10278-0

Search for Wγ resonances in proton-proton collisions at s= 13 TeV using hadronic decays of Lorentz-boosted W bosons

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D'Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Physics Letters B

Published Date

2022/3/10

A search for W γ resonances in the mass range between 0.7 and 6.0 TeV is presented. The W boson is reconstructed via its hadronic decays, with the final-state products forming a single large-radius jet, owing to a high Lorentz boost of the W boson. The search is based on proton-proton collision data at s= 13 TeV, corresponding to an integrated luminosity of 137 fb− 1, collected with the CMS detector at the LHC in 2016–2018. The W γ mass spectrum is parameterized with a smoothly falling background function and examined for the presence of resonance-like signals. No significant excess above the predicted background is observed. Model-specific upper limits at 95% confidence level on the product of the cross section and branching fraction to the W γ channel are set. Limits for narrow resonances and for resonances with an intrinsic width equal to 5% of their mass, for spin-0 and spin-1 hypotheses, range …

Fragmentation of jets containing a prompt J/ψ meson in PbPb and pp collisions at sNN= 5.02 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,J Zobec,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,Q Guo,H Wang,L Yuan

Journal

Physics Letters B

Published Date

2022/2/10

Jets containing a prompt J/ψ meson are studied in lead-lead collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV, using the CMS detector at the LHC. Jets are selected to be in the transverse momentum range of 30< p T< 40 GeV. The J/ψ yield in these jets is evaluated as a function of the jet fragmentation variable z, the ratio of the J/ψ p T to the jet p T. The nuclear modification factor, R AA, is then derived by comparing the yield in lead-lead collisions to the corresponding expectation based on proton-proton data, at the same nucleon-nucleon center-of-mass energy. The suppression of the J/ψ yield shows a dependence on z, indicating that the interaction of the J/ψ with the quark-gluon plasma formed in heavy ion collisions depends on the fragmentation that gives rise to the J/ψ meson.

Study of quark and gluon jet substructure in Z+ jet and dijet events from pp collisions

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Journal of High Energy Physics

Published Date

2022/1

Measurements of jet substructure describing the composition of quark-and gluon-initiated jets are presented. Proton-proton (pp) collision data at= 13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9 fb− 1. Generalized angularities are measured that characterize the jet substructure and distinguish quark-and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+ jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a “soft drop” grooming procedure that removes soft and large angle radiation from the jet. Using these …

Observation of the Meson in Pb-Pb and Collisions at and Measurement of its Nuclear Modification Factor

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Martina Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Physical review letters

Published Date

2022/6/21

The B c+ meson is observed for the first time in heavy ion collisions. Data from the CMS detector are used to study the production of the B c+ meson in lead-lead (Pb-Pb) and proton-proton (p p) collisions at a center-of-mass energy per nucleon pair of s N N= 5.02 TeV, via the B c+→(J/ψ→ μ+ μ−) μ+ ν μ decay. The B c+ nuclear modification factor, derived from the Pb-Pb–to–p p ratio of production cross sections, is measured in two bins of the trimuon transverse momentum and of the Pb-Pb collision centrality. The B c+ meson is shown to be less suppressed than quarkonia and most of the open heavy-flavor mesons, suggesting that effects of the hot and dense nuclear matter created in heavy ion collisions contribute to its production. This measurement sets forth a promising new probe of the interplay of suppression and enhancement mechanisms in the production of heavy-flavor mesons in the quark-gluon plasma.

Measurement of the Higgs boson width and evidence of its off-shell contributions to ZZ production

Journal

Nature Physics

Published Date

2022/11

Since the discovery of the Higgs boson in 2012, detailed studies of its properties have been ongoing. Besides its mass, its width—related to its lifetime—is an important parameter. One way to determine this quantity is to measure its off-shell production, where the Higgs boson mass is far away from its nominal value, and relating it to its on-shell production, where the mass is close to the nominal value. Here we report evidence for such off-shell contributions to the production cross-section of two Z bosons with data from the CMS experiment at the CERN Large Hadron Collider. We constrain the total rate of the off-shell Higgs boson contribution beyond the Z boson pair production threshold, relative to its standard model expectation, to the interval [0.0061, 2.0] at the 95% confidence level. The scenario with no off-shell contribution is excluded at a p-value of 0.0003 (3.6 standard deviations). We measure the width of the …

Measurement of the production cross section for jets in proton-proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Physical Review D

Published Date

2022/5/31

The measurement of the cross section for the production of a Z boson, decaying to dielectrons or dimuons, in association with at least one bottom quark jet is performed with proton-proton collision data at s= 13 TeV. The data sample corresponds to an integrated luminosity of 137 fb− 1, collected by the CMS experiment at the LHC during 2016–2018. The integrated cross sections for Z+≥ 1 b jet and Z+≥ 2 b jets are reported for the electron, muon, and combined channels. The fiducial cross sections in the combined channel are 6.52±0.04 (stat)±0.40 (syst)±0.14 (theo) pb for Z+≥ 1 b jet and 0.65±0.03 (stat)±0.07 (syst)±0.02 (theo) pb for Z+≥ 2 b jets. The differential cross section distributions are measured as functions of various kinematic observables that are useful for precision tests of perturbative quantum chromodynamics predictions. The ratios of integrated and differential cross sections for Z+≥ 2 b jets and Z+≥ …

Search for invisible decays of the Higgs boson produced via vector boson fusion in proton-proton collisions at 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2201.11585

Published Date

2022/1/27

A search for invisible decays of the Higgs boson produced via vector boson fusion (VBF) has been performed with 101 fb of proton-proton collisions delivered by the LHC at 13 TeV and collected by the CMS detector in 2017 and 2018. The sensitivity to the VBF production mechanism is enhanced by constructing two analysis categories, one based on missing transverse momentum, and a second based on the properties of jets. In addition to control regions with Z and W boson candidate events, a highly populated control region, based on the production of a photon in association with jets, is used to constrain the dominant irreducible background from the invisible decay of a Z boson produced in association with jets. The results of this search are combined with all previous measurements in the VBF topology, based on data collected in 2012 (at 8 TeV), 2015, and 2016, corresponding to integrated luminosities of 19.7, 2.3, and 36.3 fb, respectively. The observed (expected) upper limit on the invisible branching fraction of the Higgs boson is found to be 0.18 (0.10) at the 95% confidence level, assuming the standard model production cross section. The results are also interpreted in the context of Higgs-portal models.

Search for Resonances Decaying to Three Bosons in Proton-Proton Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical review letters

Published Date

2022/7/6

A search for resonances decaying into a W boson and a radion, where the radion decays into two W bosons, is presented. The data analyzed correspond to an integrated luminosity of 138 fb− 1 recorded in proton-proton collisions with the CMS detector at s= 13 TeV. One isolated charged lepton is required, together with missing transverse momentum and one or two massive large-radius jets, containing the decay products of either two or one W bosons, respectively. No excess over the background estimation is observed. The results are combined with those from a complementary channel with an all-hadronic final state, described in an accompanying paper. Limits are set on parameters of an extended warped extra-dimensional model. These searches are the first of their kind at the LHC.

Precision measurement of the boson decay branching fractions in proton-proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical Review D

Published Date

2022/4/26

The leptonic and inclusive hadronic decay branching fractions of the W boson are measured using proton-proton collision data collected at s= 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 35.9 fb− 1. Events characterized by the production of one or two W bosons are selected and categorized based on the multiplicity and flavor of reconstructed leptons, the number of jets, and the number of jets identified as originating from the hadronization of b quarks. A binned maximum likelihood estimate of the W boson branching fractions is performed simultaneously in each event category. The measured branching fractions of the W boson decaying into electron, muon, and tau lepton final states are (10.83±0.10)%,(10.94±0.08)%, and (10.77±0.21)%, respectively, consistent with lepton flavor universality for the weak interaction. The average leptonic and inclusive hadronic …

Search for a right-handed W boson and a heavy neutrino in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Journal of High Energy Physics

Published Date

2022/4

A search is presented for a right-handed W boson (W R) and a heavy neutrino (N), in a final state consisting of two same-flavor leptons (ee or μμ) and two quarks. The search is performed with the CMS experiment at the CERN LHC using a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 138 fb− 1. The search covers two regions of phase space, one where the decay products of the heavy neutrino are merged into a single large-area jet, and one where the decay products are well separated. The expected signal is characterized by an excess in the invariant mass distribution of the final-state objects. No significant excess over the standard model background expectations is observed. The observations are interpreted as upper limits on the product of W R production cross sections and branching fractions assuming that couplings are identical to those of …

Measurement of differential cross sections in proton-proton collisions at and effective field theory constraints

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical Review D

Published Date

2022/3/9

Differential cross section measurements of W±γ production in proton-proton collisions at s= 13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016–2018 with an integrated luminosity of 138 fb− 1. Candidate events containing an electron or muon, a photon, and missing transverse momentum are selected. The measurements are compared with standard model predictions computed at next-to-leading and next-to-next-to-leading orders in perturbative quantum chromodynamics. Constraints on the presence of TeV-scale new physics affecting the W W γ vertex are determined within an effective field theory framework, focusing on the O 3 W operator. A simultaneous measurement of the photon transverse momentum and the azimuthal angle of the charged lepton in a special reference frame is performed. This two-dimensional approach provides up to a factor …

Measurement of the Inclusive and Differential Higgs Boson Production Cross Sections in the Decay Mode to a Pair of Leptons in Collisions at

Authors

Albert M Sirunyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Shaaban Khalil,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Young-Il Choi,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Lorenzo Uplegger,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Alessandro Thea,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Sinan Sagir,Georgios Tsipolitis,Jennifer Chu,Sanghyun Ko,Jozsef Molnar,Soureek Mitra,Torben Dreyer,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,Luc Pape,James Hirschauer,Andreas Nürnberg,Burak Bilki,Francisco Yumiceva,Evrim Ersin Kangal,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Danila Tlisov,Austin Baty,Tomas Lindén,Zachary Lesko,Jonathon Langford,Graham Wilson,Giovanna Selvaggi,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Bhawandeep Bhawandeep,Andrew Gilbert,Weifeng Ji,Wolfram Dietrich Zeuner,Tiziano Camporesi,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Georgios Daskalakis,Kin Ho Lo,Ernesto Migliore,Giacomo Ortona,Paul Schütze,Salvatore Nuzzo,Alexander Morton,Vivan Nguyen,Nicola Cavallo,Anne-Marie Magnan,Christopher Mcginn,Chanwook Hwang,Redwan Habibullah,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Marta Felcini,Damir Lelas,Xinmei Niu,Gillian Kopp,Michal Olszewski,Scarlet Norberg,Oleksandr Zenaiev,Paul Lujan,Dennis Roy,Alexander Pauls,Martijn Mulders,Fabrizio Palla,Satoshi Hasegawa,Elena Popova,Jeremi Niedziela,Roberval Walsh,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Andrea Carlo Marini,Olmo Cerri,Juozas Vaitkus,Prakash Thapa,Caroline Elisabeth Niniane Niemeyer,Olena Karacheban,Alicia Calderon,Akshansh Singh,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Fotios Ptochos,Noemi Beni,Berkan Kaynak,Anna Zanetti,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Clint Richardson,Maria Cepeda,Mauricio Thiel,William Tabb,Yannik Rath,John Paul Chou,Linwei Li,Peicho Petkov,Lorenzo Russo,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Nural Akchurin,Olaf Behnke,Russell Richard Betts,Reham Aly,Vincenzo Innocente,Laura Dodd

Published Date

2020/7/4

Measurements of the fiducial inclusive and differential production cross sections of the Higgs boson in proton-proton collisions at= 13 TeV are performed using events where the Higgs boson decays into a pair of W bosons that subsequently decay into a final state with an electron, a muon, and a pair of neutrinos. The analysis is based on data collected with the CMS detector at the LHC during 2016–2018, corresponding to an integrated luminosity of 137 fb− 1. Production cross sections are measured as a function of the transverse momentum of the Higgs boson and the associated jet multiplicity. The Higgs boson signal is extracted and simultaneously unfolded to correct for selection efficiency and resolution effects using maximum-likelihood fits to the observed distributions in data. The integrated fiducial cross section is measured to be 86. 5±9. 5 fb, consistent with the Standard Model expectation of 82. 5±4. 2 fb …

Inclusive nonresonant multilepton probes of new phenomena at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Cesar Rendon,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Physical Review D

Published Date

2022/6/14

An inclusive search for nonresonant signatures of beyond the standard model (SM) phenomena in events with three or more charged leptons, including hadronically decaying τ leptons, is presented. The analysis is based on a data sample corresponding to an integrated luminosity of 138 fb− 1 of proton-proton collisions at s= 13 TeV, collected by the CMS experiment at the LHC in 2016–2018. Events are categorized based on the lepton and b-tagged jet multiplicities and various kinematic variables. Three scenarios of physics beyond the SM are probed, and signal-specific boosted decision trees are used for enhancing sensitivity. No significant deviations from the background expectations are observed. Lower limits are set at 95% confidence level on the mass of type-III seesaw heavy fermions in the range 845–1065 GeV for various decay branching fraction combinations to SM leptons. Doublet and singlet …

Identification of hadronic tau lepton decays using a deep neural network

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2201.08458

Published Date

2022/1/20

A new algorithm is presented to discriminate reconstructed hadronic decays of tau leptons () that originate from genuine tau leptons in the CMS detector against candidates that originate from quark or gluon jets, electrons, or muons. The algorithm inputs information from all reconstructed particles in the vicinity of a candidate and employs a deep neural network with convolutional layers to efficiently process the inputs. This algorithm leads to a significantly improved performance compared with the previously used one. For example, the efficiency for a genuine to pass the discriminator against jets increases by 10-30% for a given efficiency for quark and gluon jets. Furthermore, a more efficient reconstruction is introduced that incorporates additional hadronic decay modes. The superior performance of the new algorithm to discriminate against jets, electrons, and muons and the improved reconstruction method are validated with LHC proton-proton collision data at 13 TeV.

Measurement of the inclusive and differential t γ cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at = 13 …

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2022/5

The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions in the decay channel with two oppositely charged leptons (e±μ∓, e+ e−, or μ+ μ−). The measurement is performed using 138 fb− 1 of proton-proton collision data recorded by the CMS experiment at= 13 TeV during the 2016–2018 data-taking period of the CERN LHC. A fiducial phase space is defined such that photons radiated by initial-state particles, top quarks, or any of their decay products are included. An inclusive cross section of 175. 2±2. 5 (stat)±6. 3 (syst) fb is measured in a signal region with at least one jet coming from the hadronization of a bottom quark and exactly one photon with transverse momentum above 20 GeV. Differential cross sections are measured as functions of several kinematic observables of the photon, leptons, and jets, and compared to standard model predictions. The …

Probing Charm Quark Dynamics via Multiparticle Correlations in Pb-Pb Collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,TT Tran,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan

Journal

Physical review letters

Published Date

2022/7/5

Multiparticle azimuthal correlations of prompt D 0 mesons are measured in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of s NN= 5.02 TeV. For the first time, a four-particle cumulant method is used to extract the second Fourier coefficient of the azimuthal distribution (v 2) of D 0 mesons as a function of event centrality and the D 0 transverse momentum. The ratios of the four-particle v 2 values to previously measured two-particle cumulant results provide direct experimental access to event-by-event fluctuations of charm quark azimuthal anisotropies. These ratios are also found to be comparable to those of inclusive charged particles in the event. However, hints of deviations are seen in the most central and peripheral collisions. To investigate the origin of flow fluctuations in the charm sector, these measurements are compared to a model implementing fluctuations of charm quark energy loss via …

Erratum to: Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at = 13 TeV

Authors

Albert M Sirunyan,A Tumasyan,W Adam,F Ambrogi,T Bergauer,J Brandstetter,M Dragicevic,J Erö,A Escalante Del Valle,M Flechl,R Frühwirth,M Jeitler,N Krammer,I Krätschmer,D Liko,T Madlener,I Mikulec,N Rad,J Schieck,R Schöfbeck,M Spanring,D Spitzbart,W Waltenberger,C-E Wulz,M Zarucki,V Drugakov,MR Darwish,EA De Wolf,D Di Croce,X Janssen,J Lauwers,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,L Moreels,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,D Beghin,B Bilin,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,J Luetic,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,T Cornelis,D Dobur,I Khvastunov,M Niedziela,C Roskas,D Trocino,M Tytgat,W Verbeke,B Vermassen,M Vit,N Zaganidis,O Bondu,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,A Magitteri,J Prisciandaro,A Saggio,M Vidal Marono,P Vischia,J Zobec,FL Alves,GA Alves,G Correia Silva,C Hensel,A Moraes,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,LM Huertas Guativa,H Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,S Ahuja,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,A Marinov,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov

Journal

Journal of High Energy Physics

Published Date

2022/3

The CMS collaboration., Sirunyan, AM, Tumasyan, A. et al. Erratum to: Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at= 13 TeV. J. High Energ. Phys. 2022, 187 (2022). https://doi. org/10.1007/JHEP03 (2022) 187

Sensitivity to millicharged particles in future proton-proton collisions at the LHC with the milliQan detector

Authors

A Ball,J Brooke,C Campagnari,M Carrigan,M Citron,A De Roeck,M Ezeldine,B Francis,M Gastal,M Ghimire,J Goldstein,F Golf,A Haas,R Heller,CS Hill,L Lavezzo,R Loos,S Lowette,B Manley,B Marsh,DW Miller,B Odegard,R Schmitz,F Setti,H Shakeshaft,D Stuart,M Swiatlowski,J Yoo,H Zaraket

Journal

Physical Review D

Published Date

2021/8/13

We report on the expected sensitivity of dedicated scintillator-based detectors at the LHC for elementary particles with charges much smaller than the electron charge. The dataset provided by a prototype scintillator-based detector is used to characterize the performance of the detector and provide an accurate background projection. Detector designs, including a novel slab detector configuration, are considered for the data taking period of the LHC to start in 2022 (Run 3) and for the high luminosity LHC. With the Run 3 dataset, the existence of new particles with masses between 10 MeV and 45 GeV could be excluded at 95% confidence level for charges between 0.003 e and 0.3 e, depending on their mass. With the high luminosity LHC dataset, the expected limits would reach between 10 MeV and 80 GeV for charges between 0.0018 e and 0.3 e, depending on their mass.

Search for chargino-neutralino production in events with Higgs and W bosons using 137 fb−1 of proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2021/10

A search for electroweak production of supersymmetric (SUSY) particles in final states with one lepton, a Higgs boson decaying to a pair of bottom quarks, and large missing transverse momentum is presented. The search uses data from proton-proton collisions at a center-of-mass energy of 13 TeV collected using the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb− 1. The observed yields are consistent with backgrounds expected from the standard model. The results are interpreted in the context of a simplified SUSY model of chargino-neutralino production, with the chargino decaying to a W boson and the lightest SUSY particle (LSP) and the neutralino decaying to a Higgs boson and the LSP. Charginos and neutralinos with masses up to 820 GeV are excluded at 95% confidence level when the LSP mass is small, and LSPs with mass up to 350 GeV are excluded when the masses of …

Measurements of angular distance and momentum ratio distributions in three-jet and + two-jet final states in collisions

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,I Mikulecc,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,Mohamed Rashad Darwish,Eddi A De Wolf,D Di Croce,Xavier Janssen,Tomas Kello,Aleksandra Lelek,Maxim Pieters,H Rejeb Sfar,Hans Van Haevermaet,Pierre Van Mechelen,Senne Van Putte,Nick Van Remortel,Freya Blekman,Emil Sørensen Bols,Simranjit Singh Chhibra,Jorgen D’Hondt,Jarne De Clercq,Denys Lontkovskyi,Steven Lowette,Ivan Marchesini,Seth Moortgat,Alexander Morton,Quentin Python,Stefaan Tavernier,Walter Van Doninck,Petra Van Mulders,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Brian Dorney,Laurent Favart,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Inna Makarenko,Louis Moureaux,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,J Zobec,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov

Journal

The European Physical Journal C

Published Date

2021/9

Collinear (small-angle) and large-angle, as well as soft and hard radiations are investigated in three-jet and  + two-jet events collected in proton-proton collisions at the LHC. The normalized production cross sections are measured as a function of the ratio of transverse momenta of two jets and their angular separation. The measurements in the three-jet and  + two-jet events are based on data collected at a center-of-mass energy of 8, corresponding to an integrated luminosity of 19.8. The  + two-jet events are reconstructed in the dimuon decay channel of the  boson. The three-jet measurement is extended to include data corresponding to an integrated luminosity of 2.3. The results are compared to predictions from event generators that include parton showers, multiple parton interactions, and hadronization. The collinear and soft regions are in general well described by …

Observation of a New Excited Beauty Strange Baryon Decaying to

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,TT Tran,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical review letters

Published Date

2021/6/25

The Ξ b− π+ π− invariant mass spectrum is investigated with an event sample of proton-proton collisions at s= 13 TeV, collected by the CMS experiment at the LHC in 2016–2018 and corresponding to an integrated luminosity of 140 fb− 1. The ground state Ξ b− is reconstructed via its decays to J/ψ Ξ− and J/ψ Λ K−. A narrow resonance, labeled Ξ b (6100)−, is observed at a Ξ b− π+ π− invariant mass of 6100.3±0.2 (stat)±0.1 (syst)±0.6 (Ξ b−) MeV, where the last uncertainty reflects the precision of the Ξ b− baryon mass. The upper limit on the Ξ b (6100)− natural width is determined to be 1.9 MeV at 95% confidence level. The low Ξ b (6100)− signal yield observed in data does not allow a measurement of the quantum numbers of the new state. However, following analogies with the established excited Ξ c baryon states, the new Ξ b (6100)− resonance and its decay sequence are consistent with the orbitally excited Ξ …

Measurement of differential production cross sections in the full kinematic range using events from proton-proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen

Journal

Physical Review D

Published Date

2021/11/30

Measurements of differential and double-differential cross sections of top-quark pair (t t) production are presented in the lepton+ jets channels with a single electron or muon and jets in the final state. The analysis combines for the first time signatures of top quarks with low transverse momentum p T, where the top-quark decay products can be identified as separated jets and isolated leptons, and with high p T, where the decay products are collimated and overlap. The measurements are based on proton-proton collision data at s= 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb− 1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations based on theoretical assumptions. Most of the measured differential cross sections are well described by standard model predictions with the exception of some double …

Constraints on anomalous Higgs boson couplings to vector bosons and fermions in its production and decay using the four-lepton final state

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2104.12152

Published Date

2021/4/25

Studies of CP violation and anomalous couplings of the Higgs boson to vector bosons and fermions are presented. The data were acquired by the CMS experiment at the LHC and correspond to an integrated luminosity of 137 fb-1 at a proton-proton collision energy of 13 TeV. The kinematic effects in the Higgs boson's four-lepton decay H→4ℓ and its production in association with two jets, a vector boson, or top quarks are analyzed, using a full detector simulation and matrix element techniques to identify the production mechanisms and to increase sensitivity to the tensor structure of the Higgs boson interactions. A simultaneous measurement is performed of up to five Higgs boson couplings to electroweak vector bosons (HVV), two couplings to gluons (Hgg), and two couplings to top quarks (Htt). The CP measurement in the Htt interaction is combined with the recent measurement in the H→γγ channel. The results are presented in the framework of anomalous couplings and are also interpreted in the framework of effective field theory, including the first study of CP properties of the Htt and effective Hgg couplings from a simultaneous analysis of the gluon fusion and top-associated processes. The results are consistent with the standard model of particle physics.

Springer : Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at = 13 TeV

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,James Hirschauer,Andreas Nürnberg,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Virgil E Barnes,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Antoine Lesauvage,Kin Ho Lo,Axel Buchot Perraguin,Michael Reichmann,Ernesto Migliore,Alexander Zotz,Giacomo Ortona,Paul Schütze,Ece Asilar,Stavros Mallios,Edoardo Bossini,Alexander Morton,Vivan Nguyen,Redwan Habibullah,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Scarlet Norberg,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Sandhya Jain,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Konstantin Shchablo,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Angelo Giacomo Zecchinelli,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Samuel Lascio,Fotios Ptochos,Berkan Kaynak,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Abhishikth Mallampalli,Maria Cepeda,Mauricio Thiel,Cécile Caillol,Yannik Rath,John Paul Chou,Peicho Petkov,John Rotter,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Olaf Behnke,Reham Aly,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin,Jyothsna Rani Komaragiri

Journal

JHEP

Published Date

2021/12/6

A search for new heavy resonances decaying to a pair of Higgs bosons (HH) in proton-proton collisions at a center-of-mass energy of 13TeV is presented. Data were collected with the CMS detector at the LHC in 2016–2018, corresponding to an integrated luminosity of 138 fb− 1. Resonances with a mass between 0.8 and 4.5 TeV are considered using events in which one Higgs boson decays into a bottom quark pair and the other into final states with either one or two charged leptons. Specifically, the single-lepton decay channel HH→ bbWW∗→ bblνqq and the dilepton decay channels HH→ bbWW∗→ bblνlν and HH→ bbττ→ bblννlνν are examined, where l in the final state corresponds to an electron or muon. The signal is extracted using a two-dimensional maximum likelihood fit of the H→ bb jet mass and HH invariant mass distributions. No significant excess above the standard model expectation is observed in data. Model-independent exclusion limits are placed on the product of the cross section and branching fraction for narrow spin-0 and spin-2 massive bosons decaying to HH. The results are also interpreted in the context of radion and bulk graviton production in models with a warped extra spatial dimension. The results provide the most stringent limits to date for X→ HH signatures with final-state leptons and at some masses provide the most sensitive limits of all X→ HH searches.

Measurement of prompt open-charm production cross sections in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov

Journal

Journal of high energy physics

Published Date

2021/11

The production cross sections for prompt open-charm mesons in proton-proton collisions at a center-of-mass energy of 13 TeV are reported. The measurement is performed using a data sample collected by the CMS experiment corresponding to an integrated luminosity of 29 nb− 1. The differential production cross sections of the D∗±, D±, and D 0 mesons are presented in ranges of transverse momentum and pseudorapidity 4< p T< 100 GeV and| η|< 2. 1, respectively. The results are compared to several theoretical calculations and to previous measurements.

Search for long-lived particles produced in association with a Z boson in proton-proton collisions at = 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2110.13218

Published Date

2021/10/25

A search for long-lived particles (LLPs) produced in association with a Z boson is presented. The study is performed using data from proton-proton collisions with a center-of-mass energy of 13 TeV recorded by the CMS experiment during 2016-2018, corresponding to an integrated luminosity of 117 fb. The LLPs are assumed to decay to a pair of standard model quarks that are identified as displaced jets within the CMS tracker system. Triggers and selections based on Z boson decays to electron or muon pairs improve the sensitivity to light LLPs (down to 15 GeV). This search provides sensitivity to beyond the standard model scenarios which predict LLPs produced in association with a Z boson. In particular, the results are interpreted in the context of exotic decays of the Higgs boson to a pair of scalar LLPs (H SS). The Higgs boson decay branching fraction is constrained to values less than 6% for proper decay lengths of 10-100 mm and for LLP masses between 40 and 55 GeV. In the case of low-mass ( 15 GeV) scalar particles that subsequently decay to a pair of b quarks, the search is sensitive to branching fractions (H SS) 20% for proper decay lengths of 10-50 mm. The use of associated production with a Z boson increases the sensitivity to low-mass LLPs of this analysis with respect to gluon fusion searches. In the case of 15 GeV scalar LLPs, the improvement corresponds to a factor of 2 at a proper decay length of 30 mm.

Search for long-lived particles using displaced jets in proton-proton collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,J Schieck,R Schoefbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov

Journal

Physical Review D

Published Date

2021/7/30

An inclusive search is presented for long-lived particles using displaced jets. The search uses a data sample collected with the CMS detector at the CERN LHC in 2017 and 2018, from proton-proton collisions at a center-of-mass energy of 13 TeV. The results of this search are combined with those of a previous search using a data sample collected with the CMS detector in 2016, yielding a total integrated luminosity of 132 fb− 1. The analysis searches for the distinctive topology of displaced tracks and displaced vertices associated with a dijet system. For a simplified model, where pair-produced long-lived neutral particles decay into quark-antiquark pairs, pair production cross sections larger than 0.07 fb are excluded at 95% confidence level (CL) for long-lived particle masses larger than 500 GeV and mean proper decay lengths between 2 and 250 mm. For a model where the standard model-like Higgs boson …

Measurement of the azimuthal anisotropy of and mesons in PbPb collisions at sNN= 5.02 TeV

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Martin Flechl,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Drugakov,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,L Moureaux,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,T Cornelis,D Dobur,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,C Caputo,P David,C Delaere,M Delcourt,A Giammanco,V Lemaitre,J Prisciandaro,A Saggio,P Vischia,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,H Malbouisson,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,P Rebello Teles,LJ Sanchez Rosas,A Santoro,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,X Gao,L Yuan,M Ahmad,Z Hu,Y Wang,GM Chen,HS Chen,M Chen,CH Jiang

Journal

Physics Letters B

Published Date

2021/8/10

The second-order Fourier coefficients (v 2) characterizing the azimuthal distributions of Image 3 and Image 4 mesons produced in PbPb collisions at s NN= 5.02 TeV are studied. The Image 5 mesons are reconstructed in their dimuon decay channel, as measured by the CMS detector. The collected data set corresponds to an integrated luminosity of 1.7 nb− 1. The scalar product method is used to extract the v 2 coefficients of the azimuthal distributions. Results are reported for the rapidity range| y|< 2.4, in the transverse momentum interval 0< p T< 50 GeV/c, and in three centrality ranges of 10–30%, 30–50% and 50–90%. In contrast to the J/ψ mesons, the measured v 2 values for the Image 5 mesons are found to be consistent with zero.

Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at = 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2109.13822

Published Date

2021/9/28

A measurement of inclusive four-jet production in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The transverse momenta of jets within $\lvert\eta\rvert$ 4.7 reach down to 35, 30, 25, and 20 GeV for the first-, second-, third-, and fourth-leading jet, respectively. Differential cross sections are measured as functions of the jet transverse momentum, jet pseudorapidity, and several other observables that describe the angular correlations between the jets. The measured distributions show sensitivity to different aspects of the underlying event, parton shower, and matrix element calculations. In particular, the interplay between angular correlations caused by parton shower and double-parton scattering contributions is shown to be important. The double-parton scattering contribution is extracted by means of a template fit to the data, using distributions for single-parton scattering obtained from Monte Carlo event generators and a double-parton scattering distribution constructed from inclusive single-jet events in data. The effective double-parton scattering cross section is calculated and discussed in view of previous measurements and of its dependence on the models used to describe the single-parton scattering background.

Precision luminosity measurement in proton–proton collisions at in 2015 and 2016 at CMS

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,Mohamed Rashad Darwish,Eddi A De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Mueller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,David Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Marek Gruchala,Gianny Mestdach,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Pietro Vischia,Sébastien Wertz,Sophie Wuyckens,GA Alves,Carsten Hensel,Arthur Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,Dilson de Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,P Rebello Teles,LJ Sanchez Rosas,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Ivan Atanasov,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Wenxing Fang,Qianying Guo,Tahir Javaid,Monika Mittal,Hanwen Wang,Li Yuan,Muhammad Ahmad

Journal

The European Physical Journal C

Published Date

2021/9

The measurement of the luminosity recorded by the CMS detector installed at LHC interaction point 5, using proton–proton collisions at in 2015 and 2016, is reported. The absolute luminosity scale is measured for individual bunch crossings using beam-separation scans (the van der Meer method), with a relative precision of 1.3 and 1.0% in 2015 and 2016, respectively. The dominant sources of uncertainty are related to residual differences between the measured beam positions and the ones provided by the operational settings of the LHC magnets, the factorizability of the proton bunch spatial density functions in the coordinates transverse to the beam direction, and the modeling of the effect of electromagnetic interactions among protons in the colliding bunches. When applying the van der Meer calibration to the entire run periods, the integrated luminosities when CMS was fully operational are 2.27 …

Search for long-lived particles decaying to leptons with large impact parameter in proton-proton collisions at = 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2110.04809

Published Date

2021/10/10

A search for new long-lived particles decaying to leptons using proton-proton collision data produced by the CERN LHC at = 13 TeV is presented. Events are selected with two leptons (an electron and a muon, two electrons, or two muons) that both have transverse impact parameter values between 0.01 and 10 cm and are not required to form a common vertex. Data used for the analysis were collected with the CMS detector in 2016, 2017, and 2018, and correspond to an integrated luminosity of 118 (113) fb in the ee channel (e and channels). The search is designed to be sensitive to a wide range of models with displaced e, ee, and final states. The results constrain several well-motivated models involving new long-lived particles that decay to displaced leptons. For some areas of the available phase space, these are the most stringent constraints to date.

First measurement of the cross section for top quark pair production with additional charm jets using dileptonic final states in pp collisions at s= 13TeV

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,K Lee,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,Peicho Petkov,A Petrov,T Cheng,W Fang,Q Guo,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Physics Letters B

Published Date

2021/9/10

The first measurement of the inclusive cross section for top quark pairs (t t‾) produced in association with two additional charm jets is presented. The analysis uses the dileptonic final states of t t‾ events produced in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 41.5 fb− 1, recorded by the CMS experiment at the LHC. A new charm jet identification algorithm provides input to a neural network that is trained to distinguish among t t‾ events with two additional charm (t t‾ c c‾), bottom (t t‾ b b‾), and light-flavour or gluon (t t‾ LL) jets. By means of a template fitting procedure, the inclusive t t‾ c c‾, t t‾ b b‾, and t t‾ LL cross sections are simultaneously measured, together with their ratios to the inclusive t t‾+ two jets cross section. This provides measurements of the t t‾ c c‾ and t t‾ b b‾ cross sections of 10.1±1.2 (stat)±1.4 (syst) pb and 4.54±0.35 (stat)±0.56 (syst) pb …

The phase-2 upgrade of the CMS tracker

Authors

K Klein,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Ece Asilar,Thomas Bergauer,Johannes Brandstetter,Erica Brondolin,Marko Dragicevic,Janos Erö,Alberto Escalante del Valle,Martin Flechl,Markus Friedl,Rudolf Fruehwirth,Vasile Mihai Ghete,Johannes Grossmann,Josef Hrubec,Manfred Jeitler,Axel König,Natascha Krammer,Ilse Krätschmer,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Elias Pree,Navid Rad,Herbert Rohringer,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Daniel Spitzbart,Wolfgang Waltenberger,Johannes Wittmann,Claudia-Elisabeth Wulz,Mateusz Zarucki,Vladimir Chekhovsky,Vladimir Mossolov,Juan Suarez Gonzalez,Eddi A de Wolf,Davide Di Croce,Xavier Janssen,Jasper Lauwers,Merijn van de Klundert,Hans van Haevermaet,Pierre van Mechelen,Nick van Remortel,Shimaa Abu Zeid,Freya Blekman,Jorgen d'Hondt,Isabelle de Bruyn,Jarne de Clercq,Kevin Deroover,Giannis Flouris,Denys Lontkovskyi,Steven Lowette,Ivan Marchesini,Seth Moortgat,Lieselotte Moreels,Quentin Python,Kirill Skovpen,Stefaan Tavernier,Walter van Doninck,Petra van Mulders,Isis van Parijs,Diego Beghin,Bugra Bilin,Hugues Brun,Barbara Clerbaux,Gilles de Lentdecker,Hugo Delannoy,Brian Dorney,Giuseppe Fasanella,Laurent Favart,Reza Goldouzian,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Thomas Lenzi,Jelena Luetic,Thierry Maerschalk,Andrey Marinov,Tomislav Seva,Elizabeth Starling,Pascal Vanlaer,David Vannerom,Ryo Yonamine,Florian Zenoni,Tom Cornelis,Didar Dobur,Alexis Fagot,Muhammad Gul,Illia Khvastunov,Deniz Poyraz,Christos Roskas,Sinem Salva Diblen,Michael Tytgat,Willem Verbeke,Nicolas Zaganidis,Hamed Bakhshiansohi,Olivier Bondu,Sébastien Brochet,Giacomo Bruno,Claudio Caputo,Adrien Caudron,Pieter David,Simon de Visscher,Christophe Delaere,Martin Delcourt,Brieuc Francois,Andrea Giammanco,Matthias Komm,Georgios Krintiras,Vincent Lemaitre,Alessio Magitteri,Alexandre Mertens,Marco Musich,Krzysztof Piotrzkowski,Loic Quertenmont,Alessia Saggio,Miguel Vidal Marono,Sébastien Wertz,Joze Zobec,Walter Luiz Aldá Júnior,Fábio Lúcio Alves,Gilvan Alves,Lucas Brito,Marcos Correa Martins,Carsten Hensel,Arthur Moraes,Maria Elena Pol,Patricia Rebello Teles,Ewerton Belchior Batista das Chagas,Wagner Carvalho,Jose Chinellato,Eduardo Coelho,Eliza Melo da Costa,Gustavo Gil da Silveira,Dilson de Jesus Damiao,Sandro Fonseca de Souza,Lina Milena Huertas Guativa,Helena Malbouisson,Miqueias Melo de Almeida,Clemencia Mora Herrera,Luiz Mundim,Helio Nogima,Luis Sanchez Rosas,Alberto Santoro,Andre Sznajder,Mauricio Thiel,Edmilson José Tonelli Manganote,Felipe Torres da Silva de Araujo

Published Date

2021/11/25

This is the final version, approved by the LHCC, of the CMS TDR devoted to the upgrade of the CMS tracker in view of the HL-LHC running.

Measurements of the associated production of a W boson and a charm quark in proton-proton collisions at 8 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2112.00895

Published Date

2021/12/2

Measurements of the associated production of a W boson and a charm (c) quark in proton-proton collisions at a centre-of-mass energy of 8 TeV are reported. The analysis uses a data sample corresponding to a total integrated luminosity of 19.7 fb collected by the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm quark jets are selected using distinctive signatures of charm hadron decays. The product of the cross section and branching fraction (pp W + c + X) (W ), where = e or , and the cross section ratio (pp W + c + X) / (pp W + + X) are measured inclusively and differentially as functions of the pseudorapidity and of the transverse momentum of the lepton from the W boson decay. The results are compared with theoretical predictions. The impact of these measurements on the determination of the strange quark distribution is assessed.

Observation of tW production in the single-lepton channel in pp collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2021/11

A measurement of the cross section of the associated production of a single top quark and a W boson in final states with a muon or electron and jets in proton-proton collisions at= 13 TeV is presented. The data correspond to an integrated luminosity of 36 fb− 1 collected with the CMS detector at the CERN LHC in 2016. A boosted decision tree is used to separate the tW signal from the dominant t background, whilst the subleading W+ jets and multijet backgrounds are constrained using data-based estimates. This result is the first observation of the tW process in final states containing a muon or electron and jets, with a significance exceeding 5 standard deviations. The cross section is determined to be 89±4 (stat)±12 (syst) pb, consistent with the standard model.

Test beam characterization of sensor prototypes for the CMS Barrel MIP Timing Detector

Authors

R Abbott,A Abreu,F Addesa,M Alhusseini,T Anderson,Y Andreev,A Apresyan,R Arcidiacono,M Arenton,E Auffray,D Bastos,LAT Bauerdick,R Bellan,M Bellato,A Benaglia,M Benettoni,R Bertoni,M Besancon,S Bharthuar,A Bornheim,E Brücken,JN Butler,C Campagnari,M Campana,R Carlin,P Carniti,N Cartiglia,M Casarsa,O Cerri,P Checchia,H Chen,S Chidzik,F Chlebana,F Cossutti,M Costa,B Cox,I Dafinei,F De Guio,P Debbins,D Del Re,A Dermenev,E Di Marco,K Dilsiz,KF Di Petrillo,G Dissertori,S Dogra,U Dosselli,I Dutta,F Caleb,C Fernandez Madrazo,M Fernandez,M Ferrero,Z Flowers,W Funk,M Gallinaro,S Ganjour,M Gardner,F Geurts,A Ghezzi,S Gninenko,F Golf,J Gonzalez,C Gotti,L Gray,F Guilloux,S Gundacker,E Hazen,S Hedia,A Heering,R Heller,T Isidori,R Isocrate,R Jaramillo,M Joyce,K Kaadze,A Karneyeu,H Kim,J King,G Kopp,M Korjik,OK Koseyan,A Kozyrev,N Kratochwil,M Lazarovits,A Ledovskoy,H Lee,J Lee,A Li,S Li,W Li,T Liu,N Lu,M Lucchini,W Lustermann,C Madrid,M Malberti,I Mandjavize,J Mao,Y Maravin,D Marlow,B Marsh,P Martinez Del Arbol,B Marzocchi,R Mazza,C McMahon,V Mechinsky,P Meridiani,A Mestvirishvili,N Minafra,A Mohammadi,F Monti,CS Moon,R Mulargia,M Murray,Y Musienko,J Nachtman,Saulius Nargelas,L Narvaez,O Neogi,C Neu,T Niknejad,M Obertino,H Ogul,G Oh,I Ojalvo,Y Onel,G Organtini,T Orimoto,J Ott,I Ovtin,M Paganoni,F Pandolfi,R Paramatti,A Peck,C Perez,G Pessina,C Pena,S Pigazzini,O Radchenko,N Redaelli,D Rigoni,E Robutti,C Rogan,R Rossin,C Rovelli,C Royon,MÖ Sahin,W Sands,F Santanastasio,U Sarica

Journal

Journal of instrumentation

Published Date

2021/7/15

The MIP Timing Detector will provide additional timing capabilities for detection of minimum ionizing particles (MIPs) at CMS during the High Luminosity LHC era, improving event reconstruction and pileup rejection. The central portion of the detector, the Barrel Timing Layer (BTL), will be instrumented with LYSO: Ce crystals and Silicon Photomultipliers (SiPMs) providing a time resolution of about 30 ps at the beginning of operation, and degrading to 50-60 ps at the end of the detector lifetime as a result of radiation damage. In this work, we present the results obtained using a 120 GeV proton beam at the Fermilab Test Beam Facility to measure the time resolution of unirradiated sensors. A proof-of-concept of the sensor layout proposed for the barrel region of the MTD, consisting of elongated crystal bars with dimensions of about 3× 3× 57 mm 3 and with double-ended SiPM readout, is demonstrated. This design …

Search for the rare decay of the W boson into a pion and a photon in proton-proton collisions at s= 13TeV

Authors

CMS collaboration

Journal

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Published Date

2021/8/10

A search is performed for the rare decay W±→π±γ in proton-proton collisions at s=13TeV. Data corresponding to an integrated luminosity of 137fb−1 were collected during 2016 to 2018 with the CMS detector. This analysis exploits a novel search strategy based on W boson production in top quark pair events. An inclusive search for the W±→π±γ decay is not optimal at the LHC because of the high trigger thresholds. Instead, a trigger selection is exploited in which the W boson originating from one of the top quarks is used to tag the event in a leptonic decay. The W boson emerging from the other top quark is used to search for the W±→π±γ signature. Such decays are characterized by an isolated track pointing to a large energy deposit, and by an isolated photon of large transverse momentum. The presence of b quark jets reduces the background from the hadronization of light-flavor quarks and gluons. The W±→π±γ decay is not observed. An upper exclusion limit is set to this branching fraction, corresponding to 1.50×10−5 at 95% confidence level, whereas the expected upper exclusion limit is 0.85−0.29 +0.52×10−5.

Search for long-lived particles decaying to jets with displaced vertices in proton-proton collisions at

Authors

Albert M Sirunyan,A Tumasyan,W Adam,T Bergauer,M Dragicevic,A Escalante Del Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,FM Pitters,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,K Lee,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,Z Hu,Y Wang,K Yi

Journal

Physical Review D

Published Date

2021/9/28

A search is presented for long-lived particles produced in pairs in proton-proton collisions at the LHC operating at a center-of-mass energy of 13 TeV. The data were collected with the CMS detector during the period from 2015 through 2018, and correspond to a total integrated luminosity of 140 fb− 1. This search targets pairs of long-lived particles with mean proper decay lengths between 0.1 and 100 mm, each of which decays into at least two quarks that hadronize to jets, resulting in a final state with two displaced vertices. No significant excess of events with two displaced vertices is observed. In the context of R-parity violating supersymmetry models, the pair production of long-lived neutralinos, gluinos, and top squarks is excluded at 95% confidence level for cross sections larger than 0.08 fb, masses between 800 and 3000 GeV, and mean proper decay lengths between 1 and 25 mm.

Search for lepton-flavor violating decays of the Higgs boson in the and final states in proton-proton collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,TT Tran,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang

Journal

Physical Review D

Published Date

2021/8/31

A search is presented for lepton-flavor violating decays of the Higgs boson to μ τ and e τ. The dataset corresponds to an integrated luminosity of 137 fb− 1 collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. No significant excess has been found, and the results are interpreted in terms of upper limits on lepton-flavor violating branching fractions of the Higgs boson. The observed (expected) upper limits on the branching fractions are, respectively, B (H→ μ τ)< 0.15 (0.15)% and B (H→ e τ)< 0.22 (0.16)% at 95% confidence level.

Measurement of the electroweak production of and two jets in proton-proton collisions at and constraints on anomalous quartic gauge couplings

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer

Journal

Physical Review D

Published Date

2021/10/5

The first observation of the electroweak (EW) production of a Z boson, a photon, and two forward jets (Z γ jj) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. A data set corresponding to an integrated luminosity of 137 fb− 1, collected by the CMS experiment at the LHC in 2016–2018 is used. The measured fiducial cross section for EW Z γ jj is σ EW= 5.21±0.52 (stat)±0.56 (syst) fb= 5.21±0.76 fb. Single-differential cross sections in photon, leading lepton, and leading jet transverse momenta, and double-differential cross sections in m jj and| Δ η jj| are also measured. Exclusion limits on anomalous quartic gauge couplings are derived at 95% confidence level in terms of the effective field theory operators M 0 to M 5, M 7, T 0 to T 2, and T 5 to T 9.

Search for top squark production in fully hadronic final states in proton-proton collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,Y Wang

Journal

Physical Review D

Published Date

2021/9/10

A search for production of the supersymmetric partners of the top quark, top squarks, is presented. The search is based on proton-proton collision events containing multiple jets, no leptons, and large transverse momentum imbalance. The data were collected with the CMS detector at the CERN LHC at a center-of-mass energy of 13 TeV, and correspond to an integrated luminosity of 137 fb− 1. The targeted signal production scenarios are direct and gluino-mediated top squark production, including scenarios in which the top squark and neutralino masses are nearly degenerate. The search utilizes novel algorithms based on deep neural networks that identify hadronically decaying top quarks and W bosons, which are expected in many of the targeted signal models. No statistically significant excess of events is observed relative to the expectation from the standard model, and limits on the top squark production cross …

Observation of triple J/ meson production in proton-proton collisions at 13 TeV

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Dave M Newbold,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Anna Tsatsos,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,James Hirschauer,Andreas Nürnberg,Francisco Yumiceva,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Wolfram Dietrich Zeuner,Hesham El Faham,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Antoine Lesauvage,Kin Ho Lo,Axel Buchot Perraguin,Michael Reichmann,Ernesto Migliore,Alexander Zotz,Hafeez R Hoorani,Paul Schütze,Ece Asilar,Edoardo Bossini,Alexander Morton,Vivan Nguyen,Redwan Habibullah,Florian Joel J Bury,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Scarlet Norberg,Amitabh Lath,Dennis Roy,Alexander Pauls,Martijn Mulders,Sandhya Jain,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Konstantin Shchablo,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Angelo Giacomo Zecchinelli,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Samuel Lascio,Fotios Ptochos,Berkan Kaynak,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Abhishikth Mallampalli,Maria Cepeda,Mauricio Thiel,J William Gary,Cécile Caillol,Yannik Rath,John Paul Chou,Mohammed Mahmoud,Peicho Petkov,John Rotter,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Nural Akchurin,Olaf Behnke,Reham Aly,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin

Published Date

2021/11/9

Protons consist of three valence quarks, two up-quarks and one down-quark, held together by gluons and a sea of quark-antiquark pairs. Collectively, quarks and gluons are referred to as partons. In a proton-proton collision, typically only one parton of each proton undergoes a hard scattering–referred to as single-parton scattering–leaving the remainder of each proton only slightly disturbed. Here, we report the study of double-and triple-parton scatterings through the simultaneous production of three J/ψ mesons, which consist of a charm quark-antiquark pair, in proton-proton collisions recorded with the CMS experiment at the Large Hadron Collider. We observed this process–reconstructed through the decays of J/ψ mesons into pairs of oppositely charged muons–with a statistical significance above five standard deviations. We measured the inclusive fiducial cross section to be 272+141

Measurement of the top quark mass using events with a single reconstructed top quark in pp collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Alda Junior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Mal-Bouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of high energy physics

Published Date

2021/12

A measurement of the top quark mass is performed using a data sample enriched with single top quark events produced in the t channel. The study is based on proton-proton collision data, corresponding to an integrated luminosity of 35.9 fb− 1, recorded at= 13 TeV by the CMS experiment at the LHC in 2016. Candidate events are selected by requiring an isolated high-momentum lepton (muon or electron) and exactly two jets, of which one is identified as originating from a bottom quark. Multivariate discriminants are designed to separate the signal from the background. Optimized thresholds are placed on the discriminant outputs to obtain an event sample with high signal purity. The top quark mass is found to be GeV, where the uncertainty includes both the statistical and systematic components, reaching sub-GeV precision for the first time in this event topology. The masses of the top quark and antiquark are …

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins

Journal

Journal of High Energy Physics

Published Date

2021/11

A search is presented for new particles produced at the LHC in proton-proton collisions at= 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb− 1, collected in 2017–2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb− 1, collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on …

MUSiC: a model-unspecific search for new physics in proton–proton collisions at

Authors

CMS Collaboration cms-publication-committee-chair@ cern. ch,AM Sirunyan,A Tumasyan,W Adam,F Ambrogi,T Bergauer,M Dragicevic,J Erö,A Escalante Del Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,T Madlener,I Mikulec,FM Pitters,N Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Chekhovsky,A Litomin,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,N Van Remortel,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov

Journal

The European Physical Journal C

Published Date

2021/7

Results of the Model Unspecific Search in CMS (MUSiC), using proton–proton collision data recorded at the LHC at a centre-of-mass energy of 13, corresponding to an integrated luminosity of 35.9, are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found …

Search for singly and pair-produced leptoquarks coupling to third-generation fermions in proton-proton collisions at s= 13 TeV

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Navid Rad,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,M Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D'Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,D Müller,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Qianying Guo,H Wang

Journal

Physics Letters B

Published Date

2021/8/10

A search for leptoquarks produced singly and in pairs in proton-proton collisions is presented. We consider the leptoquark (LQ) to be a scalar particle of charge− 1/3e coupling to a top quark plus a tau lepton (t τ) or a bottom quark plus a neutrino (b ν), or a vector particle of charge+ 2/3e, coupling to t ν or b τ. These choices are motivated by models that can explain a series of anomalies observed in the measurement of B meson decays. In this analysis the signatures t τ ν b and t τ ν are probed, using data recorded by the CMS experiment at the CERN LHC at s= 13 TeV and that correspond to an integrated luminosity of 137 fb− 1. These signatures have not been previously explored in a dedicated search. The data are found to be in agreement with the standard model prediction. Lower limits at 95% confidence level are set on the LQ mass in the range 0.98–1.73 TeV, depending on the LQ spin and its coupling λ to a …

Measurement of prompt and nonprompt J / ψ production in p p and p Pb collisions at s NN = 5.02 TeV

Authors

AM Sirunyan,A Tumasyan,W Adam,E Asilar,T Bergauer,J Brandstetter,E Brondolin,M Dragicevic,J Erö,M Flechl,M Friedl,R Frühwirth,VM Ghete,C Hartl,N Hörmann,J Hrubec,M Jeitler,A König,I Krätschmer,D Liko,T Matsushita,I Mikulec,D Rabady,N Rad,B Rahbaran,H Rohringer,J Schieck,J Strauss,W Waltenberger,C-E Wulz,O Dvornikov,V Makarenko,V Zykunov,N Shumeiko,S Alderweireldt,EA De Wolf,X Janssen,J Lauwers,M Van De Klundert,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,S Abu Zeid,F Blekman,J D’Hondt,N Daci,I De Bruyn,K Deroover,S Lowette,S Moortgat,L Moreels,A Olbrechts,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,G Karapostoli,T Lenzi,A Léonard,J Luetic,T Maerschalk,A Marinov,A Randle-conde,T Seva,C Vander Velde,P Vanlaer,D Vannerom,R Yonamine,F Zenoni,F Zhang,A Cimmino,T Cornelis,D Dobur,A Fagot,M Gul,I Khvastunov,D Poyraz,S Salva,R Schöfbeck,M Tytgat,W Van Driessche,E Yazgan,N Zaganidis,H Bakhshiansohi,C Beluffi,O Bondu,S Brochet,G Bruno,A Caudron,S De Visscher,C Delaere,M Delcourt,B Francois,A Giammanco,A Jafari,M Komm,G Krintiras,V Lemaitre,A Magitteri,A Mertens,M Musich,K Piotrzkowski,L Quertenmont,M Selvaggi,M Vidal Marono,S Wertz,N Beliy,WL Aldá Júnior,FL Alves,GA Alves,L Brito,C Hensel,A Moraes,ME Pol,P Rebello Teles,E Belchior Batista Das Chagas,W Carvalho,J Chinellato,A Custódio,EM Da Costa,GG Da Silveira,D De Jesus Damiao,C De Oliveira Martins,S Fonseca De Souza,LM Huertas Guativa,H Malbouisson,D Matos Figueiredo,C Mora Herrera,L Mundim,H Nogima,WL Prado Da Silva,A Santoro,A Sznajder,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,S Ahuja,CA Bernardes,S Dogra,TR Fernandez Perez Tomei

Published Date

2021/9/20

© 2017, CERN for the benefit of the CMS collaboration. This paper reports the measurement of J / ψ meson production in proton–proton (p p) and proton–lead (p Pb) collisions at a center-of-mass energy per nucleon pair of 5.02TeV by the CMS experiment at the LHC. The data samples used in the analysis correspond to integrated luminosities of 28pb-1 and 35nb-1 for p p and p Pb collisions, respectively. Prompt and nonprompt J / ψ mesons, the latter produced in the decay of B hadrons, are measured in their dimuon decay channels. Differential cross sections are measured in the transverse momentum range of 2<pT<30GeV/c, and center-of-mass rapidity ranges of | yCM| < 2.4 (p p) and - 2.87 < yCM< 1.93 (p Pb). The nuclear modification factor, Rp Pb, is measured as a function of both pTand yCM. Small modifications to the J / ψ cross sections are observed in p Pb relative to p p collisions. The ratio of J / ψ production cross sections in p -going and Pb-going directions, RFB, studied as functions of pTand yCM, shows a significant decrease for increasing transverse energy deposited at large pseudorapidities. These results, which cover a wide kinematic range, provide new insight on the role of cold nuclear matter effects on prompt and nonprompt J / ψ production.

Hard color-singlet exchange in dijet events in proton-proton collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Federico Ambrogi,Thomas Bergauer,Marko Dragicevic,Janos Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,H Delannoy,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,G Correia Silva,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,M Melo De Almeida,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,EJ Tonelli Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov

Journal

Physical Review D

Published Date

2021/8/26

Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at s= 13 TeV. The signature is expected from hard color-singlet exchange. Each of the highest transverse momentum (p T) jets must have p T jet> 40 GeV and pseudorapidity 1.4<| η jet|< 4.7, with η jet 1 η jet 2< 0, where jet1 and jet2 are the leading and subleading jets in p T, respectively. The analysis is based on data collected by the CMS and TOTEM experiments during a low luminosity, high-β* run at the CERN LHC in 2015, with an integrated luminosity of 0.66 pb− 1. Events with a low number of charged particles with p T> 0.2 GeV in the interval| η|< 1 between the jets are observed in excess of calculations that assume only color-exchange. The fraction of events produced via color-singlet exchange, f CSE, is measured as a function of p T jet 2 …

Measurements of the pp → W±γγ and pp → Zγγ cross sections at = 13 TeV and limits on anomalous quartic gauge couplings

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,TT Tran,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan

Journal

Journal of High Energy Physics

Published Date

2021/10

The cross section for W or Z boson production in association with two photons is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data set corresponds to an integrated luminosity of 137 fb− 1 collected by the CMS experiment at the LHC. The W→ ℓν and Z→ ℓℓ decay modes (where ℓ= e, μ) are used to extract the Wγγ and Zγγ cross sections in a phase space defined by electron (muon) with transverse momentum larger than 30 GeV and photon transverse momentum larger than 20 GeV. All leptons and photons are required to have absolute pseudorapidity smaller than 2.5. The measured cross sections in this phase space are σ (Wγγ)=(syst)±0. 08 (PDF+ scale) fb and σ (Zγγ)=(syst)±0. 06 (PDF+ scale) fb. Limits on anomalous quartic gauge couplings are set in the framework of an effective field theory with dimension-8 operators.

Search for W′ bosons decaying to a top and a bottom quark at s= 13TeV in the hadronic final state

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,J Schieck,R Schöfbeck,M Spanring,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D'Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,G Mestdach,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Physics Letters B

Published Date

2021/9/10

A search is performed for W′ bosons decaying to a top and a bottom quark in the all-hadronic final state, in proton-proton collisions at a center-of-mass energy of 13 TeV. The analyzed data were collected by the CMS experiment between 2016 and 2018 and correspond to an integrated luminosity of 137 fb− 1. Deep neural network algorithms are used to identify the jet initiated by the bottom quark and the jet containing the decay products of the top quark when the W boson from the top quark decays hadronically. No excess above the estimated standard model background is observed. Upper limits on the production cross sections of W′ bosons decaying to a top and a bottom quark are set. Both left-and right-handed W′ bosons with masses below 3.4 TeV are excluded at 95% confidence level, and the most stringent limits to date on W′ bosons decaying to a top and a bottom quark in the all-hadronic final state …

APS: Search for Flavor-Changing Neutral Current Interactions of the Top Quark and Higgs Boson in Final States with Two Photons in Proton-Proton Collisions at $\sqrt {s}= 13 …

Authors

A Tumasyan,S Bansal,O Hindrichs,H Bandyopadhyay,B Kaynak,MA Ciocci,C Vico Villalba,Barroso Ferreira Filho,F Cetorelli,P Adzic,MH Hassanshahi,B Grynyov,MF Canelli,R Frühwirth,J Langford,I Smirnov,M Malawski,A Hassani,PT Cox,S Ragazzi,D Kondratyev,N Pervan,X Wang,J Hirschauer,T Hebbeker,N Varelas,L Tani,L Pape,A Taliercio,A Wisecarver,E Paganis,A Saibel,G Kopp,L Taylor,S Chenarani,A Rane,E Vlasov,F Simpson,S Dasu,K Farkas,J Roskes,P Mandrik,M Azarkin,D Wright,B Ribeiro Lopes,T Aushev,BP Padley,G Eckerlin,S Jeon,MM Obertino,K Christoforou,SW Lee,J D'Hondt,EA Yetkin,R Khurana,G Sorrentino,W Busza,T Ziemons,M Huwiler,C Charlot,A Uzunian,I Dutta,X Chen,J Lange,M Revering,M Van De Klundert,B Stone,S Malhotra,J Duarte Campderros,S Lammel,A Dimitrov,I Lokhtin,M Erdmann,L Calligaris,IR Tomalin,J Milosevic,R Mankel,UG Tok,R Clare,D Fasanella,R Breedon,J Fraga,A Babaev,PH Butler,T Toriashvili,V Re,D Wang,G Anagnostou,S Moortgat,WGD Dharmaratna,J Eysermans,D Sperka,V Kumar,C West,C Zorbilmez,B Wang,MN Yusli,G Apollinari,T Cornelis,M D'Alfonso,M Deile,G Ramirez-Sanchez,D Walter,X Coubez,M Kim,M Swartz,G Landsberg,C Hensel,F Rebassoo,P Asmuss,A Awais,J Andrea,L Benato,LM Pant,R Sharma,S Thomas,Z-A Liu,N Parashar,A Di Pilato,V O'Dell,A Levin,Y Feng,B Lenzi,J Zhang,F Errico,P Siddireddy,W Adam,J King,D Giljanovic,Y Liu,S Baxter,GP Heath,A Florent,L Soffi,S Donato,D Noonan,SF Novaes,K Vellidis,A Bundock,CE Gerber,R Aggleton,K Manolopoulos,M Margoni,U Molinatti,M Lotti,A Castaneda Hernandez,J Chinellato,C Cosby,M Bharti,J Pekkanen

Journal

Phys. Rev. Lett.

Published Date

2021/11/3

Proton-proton interactions resulting in final states with two photons are studied in a search for the signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The analysis is based on data collected at a centerof-mass energy of 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb− 1. No significant excess above the background prediction is observed. Upper limits on the branching fractions (B) of the top quark decaying to a Higgs boson and an up (u) or charm quark (c) are derived through a binned fit to the diphoton invariant mass spectrum. The observed (expected) 95% confidence level upper limits are found to be 0.019 (0.031)% for B (t→ Hu) and 0.073 (0.051)% for B (t→ Hc). These are the strictest upper limits yet determined.

Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at = 13 TeV

Authors

N Tonon,H Aarup Petersen,M Aldaya Martin,P Asmuss,S Baxter,M Bayatmakou,O Behnke,A Bermúdez Martínez,S Bhattacharya,AA Bin Anuar,K Borras,D Brunner,A Campbell,A Cardini,C Cheng,F Colombina,S Consuegra Rodríguez,G Correia Silva,V Danilov,M De Silva,L Didukh,G Eckerlin,D Eckstein,LI Estevez Banos,O Filatov,E Gallo,A Geiser,A Giraldi,A Grohsjean,M Guthoff,A Jafari,NZ Jomhari,H Jung,A Kasem,M Kasemann,H Kaveh,C Kleinwort,D Kruecker,W Lange,J Lidrych,K Lipka,W Lohmann,R Mankel,I-A Melzer-Pellmann,M Mendizabal Morentin,J Metwally,AB Meyer,M Meyer,J Mnich,A Mussgiller,Y Otarid,D Pérez Adán,D Pitzl,A Raspereza,B Ribeiro Lopes,J Rübenach,A Saggio,A Saibel,M Savitskyi,M Scham,V Scheurer,P Schuetze,C Schwanenberger,A Singh,RE Sosa Ricardo,D Stafford,M Van De Klundert,R Walsh,D Walter,Y Wen,K Wichmann,L Wiens,C Wissing,S Wuchterl,A Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,M Dragicevic,A Escalante Del Valle,R Frühwirth,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,T Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Benecke

Journal

Journal of High Energy Physics

Published Date

2021/12

A search for new top quark interactions is performed within the framework of an effective field theory using the associated production of either one or two top quarks with a Z boson in multilepton final states. The data sample corresponds to an integrated luminosity of 138 fb− 1 of proton-proton collisions at= 13 TeV collected by the CMS experiment at the LHC. Five dimension-six operators modifying the electroweak interactions of the top quark are considered. Novel machine-learning techniques are used to enhance the sensitivity to effects arising from these operators. Distributions used for the signal extraction are parameterized in terms of Wilson coefficients describing the interaction strengths of the operators. All five Wilson coefficients are simultaneously fit to data and 95% confidence level intervals are computed. All results are consistent with the SM expectations.

Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at = 13 TeV

Authors

Atlas Collaboration

Journal

arXiv preprint arXiv:2201.08269

Published Date

2022/1/20

Measurements of the production cross-sections of the Standard Model (SM) Higgs boson () decaying into a pair of -leptons are presented. The measurements use data collected with the ATLAS detector from collisions produced at the Large Hadron Collider at a centre-of-mass energy of , corresponding to an integrated luminosity of . Leptonic () and hadronic () decays of the -lepton are considered. All measurements account for the branching ratio of and are performed with a requirement , where is the true Higgs boson rapidity. The cross-section of the process is measured to be pb, in agreement with the SM prediction of pb. Inclusive cross-sections are determined separately for the four dominant production modes: pb for gluongluon fusion, pb for vector-boson fusion, pb for vector-boson associated production, and pb for top-quark pair associated production. Measurements in exclusive regions of the phase space, using the simplified template cross-section framework, are also performed. All results are in agreement with the SM predictions.

Combined searches for the production of supersymmetric top quark partners in proton–proton collisions at

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,Mohamed Rashad Darwish,Eddi A De Wolf,X Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,Freya Blekman,Emil Sørensen Bols,Jorgen D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,David Vannerom,Liam Wezenbeek,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal

Journal

The European Physical Journal C

Published Date

2021/11

A combination of searches for top squark pair production using proton–proton collision data at a center-of-mass energy of 13 at the CERN LHC, corresponding to an integrated luminosity of 137 collected by the CMS experiment, is presented. Signatures with at least 2 jets and large missing transverse momentum are categorized into events with 0, 1, or 2 leptons. New results for regions of parameter space where the kinematical properties of top squark pair production and top quark pair production are very similar are presented. Depending on the model, the combined result excludes a top squark mass up to 1325 for a massless neutralino, and a neutralino mass up to 700 for a top squark mass of 1150. Top squarks with masses from 145 to 295, for neutralino masses from 0 to 100, with a mass difference between the top squark and the neutralino in a window of 30 around the mass of …

Search for heavy resonances decaying to Z()V(qq') in proton-proton collisions at 13 TeV

Authors

CMS collaboration

Journal

arXiv preprint arXiv:2109.08268

Published Date

2021/9/17

A search is presented for heavy bosons decaying to Z()V(qq'), where V can be a W or a Z boson. A sample of proton-proton collision data at 13 TeV was collected by the CMS experiment during 2016-2018. The data correspond to an integrated luminosity of 137 fb. The event categorization is based on the presence of high-momentum jets in the forward region to identify production through weak vector boson fusion. Additional categorization uses jet substructure techniques and the presence of large missing transverse momentum to identify W and Z bosons decaying to quarks and neutrinos, respectively. The dominant standard model backgrounds are estimated using data taken from control regions. The results are interpreted in terms of radion, W' boson, and graviton models, under the assumption that these bosons are produced via gluon-gluon fusion, Drell-Yan, or weak vector boson fusion processes. No evidence is found for physics beyond the standard model. Upper limits are set at 95% confidence level on various types of hypothetical new bosons. Observed (expected) exclusion limits on the masses of these bosons range from 1.2 to 4.0 (1.1 to 3.7) TeV.

Search for a heavy vector resonance decaying to a  boson and a Higgs boson in proton-proton collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,János Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,Vladimir Chekhovsky,Aliaksandr Litomin,Vladimir Makarenko,J Suarez Gonzalez,Mohamed Rashad Darwish,Eddi A De Wolf,Davide Di Croce,Xavier Janssen,Tomas Kello,Aleksandra Lelek,Maxim Pieters,H Rejeb Sfar,Hans Van Haevermaet,Pierre Van Mechelen,Senne Van Putte,Nick Van Remortel,Freya Blekman,Emil Sørensen Bols,Simranjit Singh Chhibra,Jorgen D’Hondt,Jarne De Clercq,Denys Lontkovskyi,Steven Lowette,Ivan Marchesini,Seth Moortgat,Alexander Morton,Denise Müller,Quentin Python,Stefaan Tavernier,Walter Van Doninck,Petra Van Mulders,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Brian Dorney,Laurent Favart,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Inna Makarenko,Louis Moureaux,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,M Gruchala,I Khvastunov,M Niedziela,C Roskas,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng

Journal

The European Physical Journal C

Published Date

2021/8

A search is presented for a heavy vector resonance decaying into a boson and the standard model Higgs boson, where the boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is performed in a Lorentz-boosted regime and is based on data collected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137. Upper limits are derived on the production of a narrow heavy resonance , and a mass below 3.5 and 3.7 is excluded at 95% confidence level in models where the heavy vector boson couples predominantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are …

Search for top squarks in final states with two top quarks and several light-flavor jets in proton-proton collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu

Journal

Physical Review D

Published Date

2021/8/20

Many new physics models, including versions of supersymmetry characterized by R-parity violation (RPV), compressed mass spectra, long decay chains, or additional hidden sectors, predict the production of events with top quarks, low missing transverse momentum, and many additional quarks or gluons. The results of a search for new physics in events with two top quarks and additional jets are reported. The search is performed using events with at least seven jets and exactly one electron or muon. No requirement on missing transverse momentum is imposed. The study is based on a sample of proton-proton collisions at s= 13 TeV corresponding to 137 fb− 1 of integrated luminosity collected with the CMS detector at the LHC in 2016–2018. The data are used to determine best fit values and upper limits on the cross section for pair production of top squarks in scenarios of RPV and stealth supersymmetry. Top …

Study of Z boson plus jets events using variables sensitive to double-parton scattering in pp collisions at 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Petre,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,TT Tran,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Mal-Bouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan

Journal

Journal of High Energy Physics

Published Date

2021/10

Double-parton scattering is investigated using events with a Z boson and jets. The Z boson is reconstructed using only the dimuon channel. The measurements are performed with proton-proton collision data recorded by the CMS experiment at the LHC at= 13 TeV, corresponding to an integrated luminosity of 35.9 fb− 1 collected in the year 2016. Differential cross sections of Z+≥ 1 jet and Z+≥ 2 jets are measured with transverse momentum of the jets above 20 GeV and pseudorapidity| η|< 2. 4. Several distributions with sensitivity to double-parton scattering effects are measured as functions of the angle and the transverse momentum imbalance between the Z boson and the jets. The measured distributions are compared with predictions from several event generators with different hadronization models and different parameter settings for multiparton interactions. The measured distributions show a dependence …

Observation of $\mathrm {B^{0} _ {s}} $ mesons and measurement of the $\mathrm {B^{0} _ {s}}/\mathrm {B^{+}} $ yield ratio in PbPb collisions at ${\sqrt {\smash [b]{s …

Authors

Armen Tumasyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Cole Lindsey,Balazs Ujvari,Samila Muthumuni,Ayse Polatoz,Vinicius Massami Mikuni,Alfredo Gurrola,Basile Vermassen,Young-Il Choi,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Federica Legger,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Alessandro Thea,Giuseppe Latino,Andrew Hart,Federico Vazzoler,Thomas Ferbel,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Jennifer Chu,Sanghyun Ko,Jozsef Molnar,Soureek Mitra,Jeroen Hegeman,Torben Dreyer,Shamik Ghosh,Mircho Rodozov,Michael Tytgat,Robert Schöfbeck,Luc Pape,James Hirschauer,Francisco Yumiceva,Mustafa Numan Bakirci,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Wei Shi,Robert Hirosky,Santeri Laurila,Zhen Hu,Hans Reithler,Lalit Mohan Pant,Danila Tlisov,Austin Baty,Soumya Mukherjee,Tomas Lindén,Zachary Lesko,Jonathon Langford,Graham Wilson,William Tabb,Furkan Dolek,Attilio Santocchia,Jaehoon Lim,Christos Roskas,Sergio Sánchez Navas,Erhan Gülmez,Andrew Gilbert,Wolfram Dietrich Zeuner,Tiziano Camporesi,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Georgios Daskalakis,Kin Ho Lo,Axel Buchot Perraguin,Ernesto Migliore,Giacomo Ortona,Paul Schütze,Ece Asilar,Salvatore Nuzzo,Alexander Morton,Vivan Nguyen,Anne-Marie Magnan,Christopher Mcginn,Chanwook Hwang,Redwan Habibullah,Serguei Volkov,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Marta Felcini,Damir Lelas,Xinmei Niu,Gillian Kopp,Michal Olszewski,Scarlet Norberg,Oleksandr Zenaiev,Dennis Roy,Alexander Pauls,Martijn Mulders,Fabrizio Palla,Satoshi Hasegawa,Lorenzo Uplegger,Sunil Bansal,Jeremi Niedziela,Roberval Walsh,Hugo Becerril Gonzalez,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Piotr Traczyk,Andrea Carlo Marini,Olmo Cerri,Prakash Thapa,Chia-Ming Kuo,Siqi Yuan,Olena Karacheban,Alicia Calderon,Akshansh Singh,Pawan Kumar Netrakanti,Kevin Black,Thomas Kress,Georgia Karapostoli,Fotios Ptochos,Noemi Beni,Berkan Kaynak,Marc M Baarmand,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,De Hua Zhu,Clint Richardson,Maria Cepeda,Mauricio Thiel,Cécile Caillol,Yannik Rath,John Paul Chou,Mohammed Mahmoud,Peicho Petkov,Mani Tripathi,Davide Piccolo,Pawel de Barbaro,Vaia Papadimitriou,Qianying Guo

Journal

Phys. Lett. B

Published Date

2021/9/4

The B0 s and B+ production yields are measured in PbPb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The data sample, collected with the CMS detector at the LHC, corresponds to an integrated luminosity of 1.7 nb-1. The mesons are reconstructed in the exclusive decay channels B0 s→ J/ψ (µ+ µ-) φ (K+K-) and B+→ J/ψ (µ+ µ-) K+, in the transverse momentum range 7–50 GeV/c and absolute rapidity 0–2.4. The B0 s meson is observed with a statistical significance in excess of five standard deviations for the first time in nucleus-nucleus collisions. The measurements are performed as functions of the transverse momentum of the B mesons and of the PbPb collision centrality. The ratio of production yields of B0 s and B+ is measured and compared to theoretical models that include quark recombination effects.

Measurement of the Production Cross Section in Proton-Proton Collisions at and Constraints on Effective Field Theory Coefficients

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,G Mestdach,M Niedziela,Christos Roskas,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wertz,S Wuyckens,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,W Fang,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang

Journal

Physical review letters

Published Date

2021/6/25

A fiducial cross section for W γ production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb− 1 of data collected using the CMS detector at the LHC. The W→ e ν and μ ν decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory.

Measurements of the Electroweak Diboson Production Cross Sections in Proton-Proton Collisions at Using Leptonic Decays

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,X Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,Christos Roskas,A Samalan,K Skovpen,Michael Tytgat,Willem Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Physical review letters

Published Date

2021/11/2

The first measurements of diboson production cross sections in proton-proton interactions at a center-of-mass energy of 5.02 TeV are reported. They are based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 302 pb− 1. Events with two, three, or four charged light leptons (electrons or muons) in the final state are analyzed. The W W, W Z, and Z Z total cross sections are measured as σ W W= 37. 0− 5.2+ 5.5 (stat)− 2.6+ 2.7 (syst) pb, σ W Z= 6. 4− 2.1+ 2.5 (stat)− 0.3+ 0.5 (syst) pb, and σ Z Z= 5. 3− 2.1+ 2.5 (stat)− 0.4+ 0.5 (syst) pb. All measurements are in good agreement with theoretical calculations at combined next-to-next-to-leading order quantum chromodynamics and next-to-leading order electroweak accuracy.

Mapping the human genetic architecture of COVID-19

Authors

Writing group Writing group leaders Pathak Gita A. 6 Andrews Shea J. 7 Kanai Masahiro 2,Manuscript analyses team leader,Manuscript analyses team member: meta-analysis Mehtonen Juha 1,Manuscript analyses team member: heritability,methods and supplements,Manuscript analyses team member: PHEWAS,Manuscript analyses team member: Mendelian randomization,Manuscript analyses team member: PC projection and gene prioritization,Manuscript analyses team member: gene prioritization Finucane Hilary 3 29,Manuscript analyses team member: sensitivity analysis Cordioli Mattia 1,Manuscript analyses team members: PC projection Martin Alicia R. 3 29 Zhou Wei 3 29,In silico analysis team members Pasaniuc Bogdan 32 Julienne Hanna 33 Aschard Hugues 33 Shi Huwenbo 34 Yengo Loic 35 Polimanti Renato 6 Ghoussaini Maya 15 38 Schwartzentruber Jeremy 15 38 Dunham Ian 15 40,Project management leader,Project management support Chwialkowska Karolina 42 Francescatto Margherita 43 Trankiem Amy 2 Balaconis Mary K. 2,Lea Davis,Sulggi Lee,James Priest,Alessandra Renieri,Vijay G Sankaran,David van Heel,Patrick Deelen,J Brent Richards,Tomoko Nakanishi,Les Biesecker,V Eric Kerchberger,J Kenneth Baillie,Francesca Mari,Anna Bernasconi,Stefano Ceri Baillie,Arif Canakoglu,Scientific communication leaders Wolford Brooke 68,Scientific communication members Faucon Annika 69 Dutta Atanu Kumar 70 Schurmann Claudia 71 Harry Emi 72 Birney Ewan 73 Nguyen Huy 2 Nasir Jamal 74 Kaunisto Mari 1 Solomonson Matthew 2 Dueker Nicole 76 Vadgama Nirmal 46 Limou Sophie 78,Website development leaders,Analysis team leader Auton Adam 130,Data collection leaders 23andMe COVID-19 Team*,Janie F Shelton,Anjali J Shastri,Teresa Filshtein-Sonmez,Daniella Coker,Antony Symons,Jorge Esparza-Gordillo,Stella Aslibekyan,Jared O’Connell,Chelsea Ye,Catherine H Weldon,Analysis team leader Perera Minoli 132,Data collection leaders O’Leary Kevin 133 Tuck Matthew 134 O’Brien Travis 135 Meltzer David 136 O’Donnell Peter 137 Nutescu Edith 138,Analysis team members Yang Guang 132,Data collection members Alarcon Cristina 132 Herrmann Stefanie 132 Mazurek Sophia 133 Banagan Jeff 134 Hamidi Zacharia 134 Barbour April 144 Raffat Noora 136 Moreno Diana 138,Admin team member Friedman Paula 132,Analysis team leader Ferwerda Bart 148,Data collection leaders van de Beek Diederik 148 Brouwer Matthijs C. 148 Vlaar Alexander PJ 149 Wiersinga W. Joost 150,Analysis team members Posthuma Danielle 16 Tissink Elleke 16 Koos Zwinderman AH 151 Uffelmann Emil 16,Analysis team leader Roberts Genevieve 162,Data collection leader Park Danny 162,Admin team leader Ball Catherine A. 162,Analysis team members Coignet Marie 162 McCurdy Shannon 162 Knight Spencer 162 Partha Raghavendran 162 Rhead Brooke 162,Data collection members Zhang Miao 162 Berkowitz Nathan 162 Gaddis Michael 162 Noto Keith 162 Ruiz Luong 162 Pavlovic Milos 162,Admin team members Hong Eurie L. 162 Rand Kristin 162 Girshick Ahna 162 Guturu Harendra 162 Baltzell Asher Haug 162,Analysis team leader,Data collection leaders Rahmouni Souad 163 Guntz Julien 164,Admin team leader Beguin Yves 165,Analysis team members Pigazzini Sara 1 Nkambule Lindokuhle 3 29 167,Analysis team leader,Data collection leader Morrison David R. 17,Admin team leaders Mooser Vincent 56 174,Analysis team members Forgetta Vincenzo 17 Li Rui 56 174,Admin team members Schurr Erwin 184 Lepage Pierre 56 174 Ragoussis Jiannis 56 174 Auld Daniel 56 174 Chassé Michaël 183 185 Kaufmann Daniel E. 183 186 Lathrop G. Mark 56 174 Adra Darin 17,Analysis team leaders Davis Lea K. 187 188 Cox Nancy J. 187 188 Below Jennifer E. 187 188,Analysis team members Sealock Julia M. 187 188 Faucon Annika B. 187 188 Shuey Megan M. 187 188 Polikowsky Hannah G. 187 188 Petty Lauren E. 187 188 Shaw Douglas M. 187 188 Chen Hung-Hsin 187 188 Zhu Wanying 187 188,Data collection leader Ludwig Kerstin U. 189,Analysis team members Schröder Julia 189 Maj Carlo 190,Analysis team leader Fuchsberger Christian 209,Data collection leaders Pattaro Cristian 209 De Grandi Alessandro 209,Admin team leader Pramstaller Peter 209,Analysis team members Emmert David 209 Melotti Roberto 209 Foco Luisa 209,Admin team members Mascalzoni Deborah 209 Gögele Martin 209 Domingues Francisco 209 Hicks Andrew 209,Analysis team leader Gignoux Christopher R. 210,Data collection leaders Wicks Stephen J. 210 Crooks Kristy 210,Admin team leader Barnes Kathleen C. 210,Analysis team members Daya Michelle 210 Shortt Jonathan 210 Rafaels Nicholas 210 Chavan Sameer 210,Analysis team leaders Goldstein David B. 211 Kiryluk Krzysztof 212,Data collection leaders Sengupta Soumitra 213 Chung Wendy 214 Reilly Muredach P. 215,Analysis team members Khan Atlas 215 Wang Chen 215 Povysil Gundula 216 Bhardwaj Nitin 216 Gharavi Ali G. 215 Ionita-Laza Iuliana 217,Data collection members Shang Ning 215 O’Byrne Sheila M. 215 Nandakumar Renu 215 Menon Amritha 213 So Yat S. 213 Hod Eldad 218,Admin team member Pendrick Danielle 218,Analysis team leader Kim Han-Na 219 220,Data collection leaders Park Soo-Kyung 221 Kim Hyung-Lae 222 Kang Chang Kyung 223 Lee Hyo-Jung 224 Song Kyoung-Ho 225,Admin team leaders Jae Yoon Kyung 226 227 228 Paik Nam-Jong 229 230,Analysis team members Seok Woojin 231 Yoon Heejun 232,Data collection members Joo Eun-Jeong 233 Chang Yoosoo 234 235 Ryu Seungho 234 235 Park Wan Beom 223 Su Park Jeong 236 Un Park Kyoung 236 Ham Sin Young 225 Jung Jongtak 225 Kim Eu Suk 225 Kim Hong Bin 225,Analysis team leaders Ellinghaus David 237 238 Degenhardt Frauke 237 Cáceres Mario 239 240 Juzenas Simonas 237 Lenz Tobias L. 241 242,Admin team leaders Franke Andre 237 267 Hov Johannes R. 254 268 269 270 Karlsen Tom H. 254 268 269 270 Folseraas Trine 254 268 269 270 Maya-Miles Douglas 1244 1245 244,Oliver A Cornely,Orazio Palmieri,Paolo Tentorio,Pedro M Rodrigues,Pedro P España,Per Hoffmann,Petra Bacher,Phillip Suwalski,Raúl de Pablo,Rosa Nieto,Salvatore Badalamenti,Sandra Ciesek,Sara Bombace,Sibylle Wilfling,Søren Brunak,Stefanie Heilmann-Heimbach,Humanitas COVID-19 Task Force*,Humanitas Gavazzeni COVID-19 Task Force*,Stephan Ripke,Thomas Bahmer,Ulf Landmesser,Ulrike Protzer,Valeria Rimoldi,Vegard Skogen,Victor Andrade,Victor Moreno,Wolfgang Poller,Xavier Farre,Xiaomin Wang,Yascha Khodamoradi,Zehra Karadeniz,Adolfo de Salazar,Adriana Palom,Alba-Estela Garcia-Fernandez,Albert Blanco-Grau,Alberto Zanella,Alessandra Bandera,Almut Nebel,Andrea Biondi,Andrea Caballero-Garralda,Andrea Gori,Andreas Lind,Anna Ludovica Fracanzani,Anna Peschuck,Antonio Pesenti,Carmen de la Horra,Chiara Milani,Cinzia Paccapelo

Journal

Nature

Published Date

2021/12/16

The genetic make-up of an individual contributes to the susceptibility and response to viral infection. Although environmental, clinical and social factors have a role in the chance of exposure to SARS-CoV-2 and the severity of COVID-19,, host genetics may also be important. Identifying host-specific genetic factors may reveal biological mechanisms of therapeutic relevance and clarify causal relationships of modifiable environmental risk factors for SARS-CoV-2 infection and outcomes. We formed a global network of researchers to investigate the role of human genetics in SARS-CoV-2 infection and COVID-19 severity. Here we describe the results of three genome-wide association meta-analyses that consist of up to 49,562 patients with COVID-19 from 46 studies across 19 countries. We report 13 genome-wide significant loci that are associated with SARS-CoV-2 infection or severe manifestations of COVID-19 …

Search for a heavy resonance decaying to a top quark and a W boson at = 13 TeV in the fully hadronic final state

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,E Asilar,Thomas Bergauer,Johannes Brandstetter,Erica Brondolin,Marko Dragicevic,Janos Erö,Martin Flechl,Markus Friedl,Rudolf Fruehwirth,Vasile Mihai Ghete,Christian Hartl,Natascha Hörmann,Josef Hrubec,Manfred Jeitler,Axel König,Ilse Krätschmer,Dietrich Liko,Takashi Matsushita,Ivan Mikulec,Dinyar Rabady,Navid Rad,Babak Rahbaran,Herbert Rohringer,Jochen Schieck,Josef Strauss,Wolfgang Waltenberger,C-E Wulz,Oleg Dvornikov,Vladimir Makarenko,J Suarez Gonzalez,V Zykunov,N Shumeiko,S Alderweireldt,EA De Wolf,X Janssen,J Lauwers,M Van De Klundert,H Van Haevermaet,P Van Mechelen,A Van Spilbeeck,S Abu Zeid,F Blekman,J D’hondt,N Daci,I De Bruyn,K Deroover,S Lowette,S Moortgat,L Moreels,A Olbrechts,Q Python,K Skovpen,S Tavernier,W Van Doninck,P Van Mulders,I Van Parijs,H Brun,B Clerbaux,G De Lentdecker,H Delannoy,G Fasanella,L Favart,R Goldouzian,A Grebenyuk,G Karapostoli,T Lenzi,A Léonard,J Luetic,T Maerschalk,Andrey Marinov,A Randle-Conde,T Seva,C Vander Velde,Pascal Vanlaer,David Vannerom,Ryo Yonamine,Florian Zenoni,Fengwangdong Zhang,Anna Cimmino,Tom Cornelis,Didar Dobur,Alexis Fagot,Muhammad Gul,Illia Khvastunov,Deniz Poyraz,Sinem Salva,Robert Schöfbeck,Michael Tytgat,Ward Van Driessche,Efe Yazgan,Nikolaos Zaganidis,Hamed Bakhshiansohi,Camille Beluffi,Olivier Bondu,Sébastien Brochet,Giacomo Bruno,Adrien Caudron,Simon De Visscher,Christophe Delaere,Martin Delcourt,Brieuc Francois,Andrea Giammanco,Abideh Jafari,Matthias Komm,Georgios Krintiras,Vincent Lemaitre,Alessio Magitteri,Alexandre Mertens,Marco Musich,Krzysztof Piotrzkowski,Loic Quertenmont,Michele Selvaggi,M Vidal Marono,Sébastien Wertz,Nikita Beliy,WL Júnior,Fábio Lúcio Alves,GA Alves,Lucas Brito,Carsten Hensel,Arthur Moraes,Maria Elena Pol,P Rebello Teles,E Chagas,Wagner Carvalho,Jose Chinellato,Analu Custódio,EM Da Costa,Gustavo Gil Da Silveira,Dilson De Jesus Damiao,Carley De Oliveira Martins,S Fonseca De Souza,LM Guativa,Helena Malbouisson,D Matos Figueiredo,C Mora Herrera,Luiz Mundim,Helio Nogima,WL Da Silva,Alberto Santoro,Andre Sznajder,EJ Manganote,F Torres Da Silva De Araujo,A Vilela Pereira,Sudha Ahuja,Cesar Augusto Bernardes,Sunil Dogra

Journal

Journal of High Energy Physics

Published Date

2017/9

A search is presented for massive spin-1 Z′ resonances decaying to a top quark and a heavy vector-like top quark partner T. The search is based on a 2.6 fb− 1 sample of proton-proton collisions at 13 TeV collected with the CMS detector at the LHC. The analysis is optimized for final states in which the T quark decays to a W boson and a bottom quark. The focus is on all-jet final states in which both the W boson and the top quark decay into quarks that evolve into jets. The decay products of the top quark and of the W boson are assumed to be highly Lorentz-boosted and cannot be reconstructed as separate jets, but are instead reconstructed as merged, wide jets. Techniques for the identification of jet substructure and jet flavour are used to distinguish signal from background events. Several models for Z′ bosons decaying to T quarks are excluded at 95% confidence level, with upper limits on the cross section …

Search for a heavy Higgs boson decaying into two lighter Higgs bosons in the ττbb final state at 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,V Makarenko,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,F Blekman,ES Bols,J D’Hondt,J De Clercq,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,W Verbeke,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,Q Guo,T Javaid,M Mittal,H Wang,L Yuan,M Ahmad

Journal

Journal of High Energy Physics

Published Date

2021/11

A search for a heavy Higgs boson H decaying into the observed Higgs boson h with a mass of 125 GeV and another Higgs boson h S is presented. The h and h S bosons are required to decay into a pair of tau leptons and a pair of b quarks, respectively. The search uses a sample of proton-proton collisions collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb− 1. Mass ranges of 240–3000 GeV for m H and 60–2800 GeV for are explored in the search. No signal has been observed. Model independent 95% confidence level upper limits on the product of the production cross section and the branching fractions of the signal process are set with a sensitivity ranging from 125 fb (for m H= 240 GeV) to 2. 7 fb (for m H= 1000 GeV). These limits are compared to maximally allowed products of the production cross section and the branching fractions of …

Observation of Forward Neutron Multiplicity Dependence of Dimuon Acoplanarity in Ultraperipheral Pb-Pb Collisions at

Authors

Albert M Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic,János Erö,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Thomas Madlener,Ivan Mikulec,Florian Michael Pitters,Navid Rad,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mateusz Zarucki,V Makarenko,J Suarez Gonzalez,MR Darwish,EA De Wolf,D Di Croce,X Janssen,T Kello,A Lelek,M Pieters,H Rejeb Sfar,H Van Haevermaet,P Van Mechelen,S Van Putte,F Blekman,ES Bols,SS Chhibra,J D’Hondt,J De Clercq,D Lontkovskyi,S Lowette,I Marchesini,S Moortgat,A Morton,Q Python,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,B Dorney,L Favart,A Grebenyuk,AK Kalsi,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,Tom Cornelis,Didar Dobur,M Gruchala,Illia Khvastunov,Marek Niedziela,Christos Roskas,Kirill Skovpen,Michael Tytgat,Willem Verbeke,Basile Vermassen,Martina Vit,G Bruno,F Bury,C Caputo,P David,C Delaere,M Delcourt,IS Donertas,A Giammanco,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,P Vischia,S Wuyckens,J Zobec,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,E Belchior Batista Das Chagas,H Brandao Malbouisson,W Carvalho,J Chinellato,E Coelho,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,J Martins,D Matos Figueiredo,M Medina Jaime,C Mora Herrera,L Mundim,H Nogima,P Rebello Teles,LJ Sanchez Rosas,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,I Atanasov,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,M Bonchev,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,W Fang,Q Guo,H Wang

Journal

Physical review letters

Published Date

2021/9/17

The first measurement of the dependence of γ γ→ μ+ μ− production on the multiplicity of neutrons emitted very close to the beam direction in ultraperipheral heavy ion collisions is reported. Data for lead-lead interactions at s N N= 5.02 TeV, with an integrated luminosity of approximately 1.5 nb− 1, are collected using the CMS detector at the LHC. The azimuthal correlations between the two muons in the invariant mass region 8< m μ μ< 60 GeV are extracted for events including 0, 1, or at least 2 neutrons detected in the forward pseudorapidity range| η|> 8.3. The back-to-back correlation structure from leading-order photon-photon scattering is found to be significantly broader for events with a larger number of emitted neutrons from each nucleus, corresponding to interactions with a smaller impact parameter. This observation provides a data-driven demonstration that the average transverse momentum of photons …

Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton–proton collisions at√ s= 13TeV

Authors

CMS collaboration

Journal

European Physical Journal C

Published Date

2021/8

A search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector bosons, using proton–proton collisions at s=13TeV at the LHC, is reported. The data sample corresponds to an integrated luminosity of 137fb-1 collected with the CMS detector. Events are selected by requiring two or three electrons or muons, moderate missing transverse momentum, and two jets with a large rapidity separation and a large dijet mass. No excess of events with respect to the standard model background predictions is observed. Model independent upper limits at 95% confidence level are reported on the product of the cross section and branching fraction for vector boson fusion production of charged Higgs bosons as a function of mass, from 200 to 3000GeV. The results are interpreted in the context of the Georgi–Machacek model.

See List of Professors in Dustin Stuart University(University of Oxford)

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What is Dustin Stuart's h-index at University of Oxford?

The h-index of Dustin Stuart has been 112 since 2020 and 174 in total.

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The articles with the titles of

The forward physics facility at the high-luminosity LHC

Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton–proton collisions at

Upgrading the beam telescopes at the DESY II Test Beam Facility

Search for electroweak production of charginos and neutralinos in proton-proton collisions at = 13 TeV

Inclusive and differential cross section measurements of single top quark production in association with a Z boson in proton-proton collisions at = 13 TeV

Search for new physics in the lepton plus missing transverse momentum final state in proton-proton collisions at 13 TeV

Search for single production of a vector-like T quark decaying to a top quark and a Z boson in the final state with jets and missing transverse momentum at = 13 …

Administering an antidote to Schrödinger’s cat

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are the top articles of Dustin Stuart at University of Oxford.

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The research interests of Dustin Stuart are: Laser cooling, Quantum information

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Dustin Stuart has 112,783 citations in total.

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