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Evidence for WW/WZ vector boson scattering in the decay channel ℓνqq produced in association with two jets in proton-proton collisions at s=13 TeV

  • The CMS collaboration
  • CERN
  • A. Alikhanian Yerevan Institute of Physics
  • Austrian Academy of Sciences
  • Belarusian State University
  • University of Antwerp
  • Vrije Universiteit Brussel
  • Université libre de Bruxelles
  • Korea University
  • Ghent University
  • Université catholique de Louvain
  • Centro Brasileiro de Pesquisas Físicas
  • Universidade do Estado do Rio de Janeiro
  • Universidade Estadual Paulista Júlio de Mesquita Filho
  • Universidade Federal do ABC
  • Bulgarian Academy of Sciences
  • Sofia University St. Kliment Ohridski
  • Beihang University
  • Tsinghua University
  • CAS - Institute of High Energy Physics
  • University of Florida
  • Massachusetts Institute of Technology
  • Peking University
  • Sun Yat-Sen University
  • Fudan University
  • University of California at Riverside
  • Rice University
  • Zhejiang University
  • Universidad de los Andes Colombia
  • Universidad de Antioquia
  • University of Split
  • Ruder Boskovic Institute
  • University of Cyprus
  • Charles University
  • Escuela Politécnica Nacional
  • Universidad San Francisco de Quito
  • Academy of Scientific Research and Technology
  • Al-Fayoum University
  • National Institute of Chemical Physics and Biophysics, Tallinn
  • University of Helsinki
  • Helsinki Institute of Physics
  • Lappeenranta-Lahti University of Technology
  • Université Paris-Saclay
  • Laboratoire Leprince-Ringuet
  • RWTH Aachen University
  • Institut Pluridisciplinaire Hubert Curien
  • Institut de Physique des 2 Infinis de Lyon
  • Georgian Technical University
  • Tata Institute of Fundamental Research
  • Indian Institute of Technology Madras
  • German Electron Synchrotron
  • Saha Institute of Nuclear Physics
  • Northwestern University
  • University of Kansas
  • University of Hamburg
  • Karlsruhe Institute of Technology
  • Demokritos National Centre for Scientific Research
  • National and Kapodistrian University of Athens
  • National Technical University of Athens
  • University of Ioannina
  • Eotvos Lorand University
  • Wigner Research Centre for Physics
  • Institute for Nuclear Research
  • University of Debrecen
  • Hungarian University of Agriculture and Life Sciences
  • Indian Institute of Science Bangalore
  • National Institute of Science Education and Research
  • Panjab University
  • University of Nebraska-Lincoln
  • University of Delhi
  • Homi Bhabha National Institute
  • Fermi National Accelerator Laboratory
  • Indian Institute of Science Education and Research Pune
  • Isfahan University of Technology
  • Institute for Research for Fundamental Sciences
  • University College Dublin
  • National Institute for Nuclear Physics
  • University of Bari
  • Polytechnic University of Bari
  • University of Bologna
  • University of Catania
  • University of Florence
  • University of Genoa
  • University of Milan - Bicocca
  • University of Naples Federico II
  • University of Basilicata
  • Università G. Marconi
  • University of Padua
  • University of Pavia
  • University of Perugia
  • Scuola Normale Superiore di Pisa
  • University of Pisa
  • University of Siena
  • University of Rome La Sapienza
  • University of Turin
  • University of Eastern Piedmont
  • University of Trieste
  • Kyungpook National University
  • Seoul National University
  • University of California at Santa Barbara
  • Texas Tech University
  • Chonnam National University
  • Texas A&M University
  • Hanyang University
  • Kyung Hee University
  • Sejong University
  • Sungkyunkwan University
  • University of Seoul
  • Yonsei University
  • American University of the Middle East
  • Riga Technical University
  • Vilnius University
  • University of Malaya
  • Universidad de Sonora
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • Universidad Iberoamericana (UIA)
  • Benemerita Universidad Autonoma de Puebla
  • University of Montenegro
  • The University of Auckland
  • University of Canterbury
  • Quaid-I-Azam University
  • AGH University of Krakow
  • National Centre for Nuclear Research
  • University of Warsaw
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • Joint Institute for Nuclear Research
  • RAS - Saint Petersburg Nuclear Physics Institute
  • RAS - Institute for Nuclear Research
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Moscow Institute of Physics and Technology
  • Moscow Engineering Physics Institute
  • RAS - P.N. Lebedev Physics Institute
  • Lomonosov Moscow State University
  • Rutherford Appleton Laboratory
  • Novosibirsk State University
  • Institute for High Energy Physics
  • Tomsk Polytechnic University
  • Tomsk State University
  • University of Belgrade
  • CIEMAT
  • Universidad Autónoma de Madrid
  • University of Oviedo
  • Universidad de Cantabria
  • University of Colombo
  • University of Ruhuna
  • Paul Scherrer Institute
  • Swiss Federal Institute of Technology Zurich
  • University of Zurich
  • National Central University
  • National Taiwan University
  • Chulalongkorn University
  • Cukurova University
  • Middle East Technical University
  • Bogazici University
  • Istanbul Technical University
  • Istanbul University
  • NASU - Institute for Single Crystals
  • NASU - Kharkov Institute of Physics and Technology
  • University of Bristol
  • Imperial College London
  • University of Puerto Rico
  • Brunel University London
  • Baylor University
  • Northern Illinois University
  • Catholic University of America
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  • University of Wisconsin-Madison
  • California Institute of Technology
  • Carnegie Mellon University
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  • Cornell University
  • Florida State University
  • Florida Institute of Technology
  • University of Illinois at Chicago
  • University of Iowa
  • Johns Hopkins University
  • Kansas State University
  • Lawrence Livermore National Laboratory
  • University of Maryland, College Park
  • University of Minnesota Twin Cities
  • SUNY Buffalo
  • Northeastern University
  • University of Notre Dame
  • Ohio State University
  • Princeton University
  • Purdue University
  • Purdue University Northwest
  • University of Rochester
  • Rutgers - The State University of New Jersey, New Brunswick
  • University of Tennessee, Knoxville
  • Vanderbilt University
  • University of Virginia
  • Wayne State University

Araştırma çıktısı: Dergiye katkıMakaleHakem

19 Atıf (Scopus)

Özet

Evidence is reported for electroweak (EW) vector boson scattering in the decay channel ℓνqq of two weak vector bosons WV (V=W or Z), produced in association with two parton jets. The search uses a data set of proton-proton collisions at 13 TeV collected with the CMS detector during 2016–2018 with an integrated luminosity of 138fb−1. Events are selected requiring one lepton (electron or muon), moderate missing transverse momentum, two jets with a large pseudorapidity separation and a large dijet invariant mass, and a signature consistent with the hadronic decay of a W/Z boson. The cross section is computed in a fiducial phase space defined at parton level requiring all parton transverse momenta pT>10GeV and at least one pair of outgoing partons with invariant mass mqq>100GeV. The measured and expected EW WV production cross sections are 1.90−0.46+0.53 pb and 2.23−0.11+0.08(scale)±0.05(PDF) pb, respectively, where PDF is the parton distribution function. The observed EW signal strength is μEW=0.85±0.12(stat)−0.17+0.19(syst), corresponding to a signal significance of 4.4 standard deviations with 5.1 expected, and it is measured keeping the quantum chromodynamics (QCD) associated diboson production fixed to the standard model prediction. This is the first evidence of vector boson scattering in the ℓνqq decay channel at LHC. The simultaneous measurement of the EW and QCD associated diboson production agrees with the standard model prediction.

Orijinal dilİngilizce
Makale numarası137438
DergiPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Hacim834
DOI'lar
Yayın durumuYayınlandı - 10 Kas 2022

Bibliyografik not

Publisher Copyright:
© 2022 The Author(s)

Finansman

Individuals have received support from the Marie-Curie Program and the European Research Council and Horizon 2020 Grant, contract Nos. 675440 , 724704 , 752730 , 758316 , 765710 , 824093 , 884104 , and COST Action CA16108 (European Union); the Leventis Foundation ; the Alfred P. Sloan Foundation ; the Alexander von Humboldt Foundation ; the Belgian Federal Science Policy Office ; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the F.R.S.-FNRS and FWO (Belgium) under the “Excellence of Science – EOS” – be.h project n. 30820817 ; the Beijing Municipal Science & Technology Commission , No. Z191100007219010 ; The Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Deutsche Forschungsgemeinschaft (DFG), under Germany's Excellence Strategy – EXC 2121 “Quantum Universe” – 390833306 , and under project number 400140256 - GRK2497; the Lendület (“Momentum”) Prog ram and the János Bolyai Research Scholarship of the Hungarian Academy of Sciences , the New National Excellence Program ÚNKP , the NKFIA research grants 123842 , 123959 , 124845 , 124850 , 125105 , 128713 , 128786 , and 129058 (Hungary); the Council of Science and Industrial Research , India; the Latvian Council of Science ; the Ministry of Science and Higher Education and the National Science Center , contracts Opus 2014/15/B/ST2/03998 and 2015/19/B/ST2/02861 (Poland); the Fundação para a Ciência e a Tecnologia , grant CEECIND/01334/2018 (Portugal); the National Priorities Research Program by Qatar National Research Fund ; the Ministry of Science and Higher Education , projects no. 14.W03.31.0026 and no. FSWW-2020-0008 , and the Russian Foundation for Basic Research , project No. 19-42-703014 (Russia); MCIN/AEI/10.13039/501100011033, ERDF “a way of making Europe”, and the Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de Maeztu , grant MDM-2017-0765 and Programa Severo Ochoa del Principado de Asturias (Spain); the Stavros Niarchos Foundation (Greece); the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University and the Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); the Kavli Foundation ; the Nvidia Corporation; the SuperMicro Corporation; the Welch Foundation , contract C-1845 ; and the Weston Havens Foundation (USA).

FinansörlerFinansör numarası
Excellence of Science30820817
Marie-Curie Program
Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de MaeztuMDM-2017-0765
Programa Severo Ochoa del Principado de Asturias
Alfred P. Sloan Foundation
Welch FoundationC-1845
Kavli Foundation
Alexander von Humboldt-Stiftung
NVIDIA
Qatar National Research FundFSWW-2020-0008
Ministry of Education and Science
Weston Havens Foundation
European Research Council
European Cooperation in Science and TechnologyCA16108
Council of Scientific and Industrial Research, India
Deutsche Forschungsgemeinschaft390833306, 400140256 - GRK2497
Ministerstvo Školství, Mládeže a Tělovýchovy
Fundação para a Ciência e a TecnologiaCEECIND/01334/2018
Russian Foundation for Basic ResearchMCIN/AEI/10.13039/501100011033, 19-42-703014
Fonds De La Recherche Scientifique - FNRS
Belgian Federal Science Policy Office
Chulalongkorn University
Fonds Wetenschappelijk Onderzoek
Agentschap voor Innovatie door Wetenschap en Technologie
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture
Magyar Tudományos Akadémia
A.G. Leventis Foundation
Narodowe Centrum Nauki2014/15/B/ST2/03998, 2015/19/B/ST2/02861
Stavros Niarchos Foundation
Latvijas Zinātnes Padome
Horizon 2020724704, 758316, 824093, 675440, 752730, 765710, 884104
European Regional Development Fund
Beijing Municipal Science and Technology CommissionZ191100007219010
Nemzeti Kutatási, Fejlesztési és Innovaciós Alap124845, 123842, 129058, 125105, 124850, 128786, 128713, 123959

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