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Measurements of t t ¯ differential cross sections in proton-proton collisions at √s=13 TeV using events containing two leptons

  • The CMS collaboration
  • University of Trento
  • CERN
  • A. Alikhanian Yerevan Institute of Physics
  • Austrian Academy of Sciences
  • TU Wien
  • Belarusian State University
  • University of Antwerp
  • Vrije Universiteit Brussel
  • Université libre de Bruxelles
  • Ghent University
  • Université Paris-Saclay
  • Université catholique de Louvain
  • Centro Brasileiro de Pesquisas Físicas
  • Universidade do Estado do Rio de Janeiro
  • Universidade Estadual de Campinas
  • Universidade Federal do Rio Grande do Sul
  • Universidade Estadual Paulista Júlio de Mesquita Filho
  • Universidade Federal do ABC
  • Bulgarian Academy of Sciences
  • Sofia University St. Kliment Ohridski
  • Beihang University
  • CAS - Institute of High Energy Physics
  • University of Chinese Academy of Sciences
  • Peking University
  • Tsinghua University
  • Universidad de los Andes Colombia
  • University of Split
  • Ruder Boskovic Institute
  • Alikhanov Institute for Theoretical and Experimental Physics
  • University of Cyprus
  • Charles University
  • Joint Institute for Nuclear Research
  • Escuela Politécnica Nacional
  • Universidad San Francisco de Quito
  • Academy of Scientific Research and Technology
  • Cairo University
  • Helwan University
  • Zewail City of Science and Technology
  • The British University in Egypt
  • Ain Shams University
  • National Institute of Chemical Physics and Biophysics, Tallinn
  • University of Helsinki
  • Helsinki Institute of Physics
  • Lappeenranta-Lahti University of Technology
  • King Abdulaziz University
  • Université de Strasbourg
  • Université de Haute-Alsace
  • CNRS/IN2P3
  • Universite Claude Bernard Lyon 1
  • Lomonosov Moscow State University
  • Georgian Technical University
  • Ivane Javakhishvili Tbilisi State University
  • RWTH Aachen University
  • German Electron Synchrotron
  • University of Hamburg
  • Brandenburg University of Technology
  • 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
  • Indian Institute of Science Bangalore
  • National Institute of Science Education and Research
  • Indian Institute of Technology Bhubaneswar
  • Institute of Physics Bhubaneswar
  • Panjab University
  • University of Delhi
  • Saha Institute of Nuclear Physics
  • Shoolini University of Biotechnology and Management Sciences
  • Indian Institute of Technology Madras
  • Homi Bhabha National Institute
  • Tata Institute of Fundamental Research
  • Visva-Bharati University
  • Indian Institute of Science Education and Research Pune
  • Institute for Research for Fundamental Sciences
  • Isfahan University of Technology
  • Islamic Azad University
  • 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 Siena
  • University of Genoa
  • University of Milan - Bicocca
  • University of Basilicata
  • University of Naples Federico II
  • Università G. Marconi
  • University of Padua
  • University of Pavia
  • University of Perugia
  • University of Pisa
  • Scuola Normale Superiore di Pisa
  • University of Rome La Sapienza
  • University of Turin
  • University of Eastern Piedmont
  • University of Trieste
  • Kyungpook National University
  • Chonnam National University
  • Hanyang University
  • Kyung Hee University
  • Korea University
  • Sejong University
  • Seoul National University
  • University of Seoul
  • Sungkyunkwan University
  • Vilnius University
  • University of Malaya
  • International Islamic University Malaysia
  • Malaysian Nuclear Agency
  • Universidad de Sonora
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • Consejo Nacional de Ciencia y Tecnologia Mexico
  • Universidad Iberoamericana (UIA)
  • Benemerita Universidad Autonoma de Puebla
  • Universidad Autonoma de San Luis Potosi
  • The University of Auckland
  • University of Canterbury
  • Quaid-I-Azam University
  • National Centre for Nuclear Research
  • University of Warsaw
  • Warsaw University of Technology
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • RAS - Institute for Nuclear Research
  • Moscow Engineering Physics Institute
  • RAS - Saint Petersburg Nuclear Physics Institute
  • Peter the Great St. Petersburg Polytechnic University
  • University of Florida
  • Moscow Institute of Physics and Technology
  • RAS - P.N. Lebedev Physics Institute
  • California Institute of Technology
  • Novosibirsk State University
  • RAS - Budker Institute of Nuclear Physics
  • Institute for High Energy Physics
  • Tomsk Polytechnic University
  • University of Belgrade
  • CIEMAT
  • Universidad Autónoma de Madrid
  • University of Oviedo
  • Universidad de Cantabria
  • University of Ruhuna
  • Riga Technical University
  • Paul Scherrer Institute
  • University of Zurich
  • Swiss Federal Institute of Technology Zurich
  • National Central University
  • National Taiwan University
  • Chulalongkorn University
  • Cukurova University
  • Adiyaman University
  • Istanbul Aydin University
  • Mersin University
  • Piri Reis University
  • Gaziosmanpasa University
  • Middle East Technical University
  • Ozyegin University
  • Izmir Institute of Technology
  • Bogazici University
  • Marmara University
  • Kafkas University
  • Istanbul University
  • Istanbul Bilgi University
  • Istanbul Technical University
  • Hacettepe University
  • NASU - Institute for Single Crystals
  • NASU - Kharkov Institute of Physics and Technology
  • University of Bristol
  • Rutherford Appleton Laboratory
  • University of Southampton
  • Imperial College London
  • Monash University
  • Brunel University London
  • Baylor University
  • Catholic University of America
  • University of Alabama
  • Boston University
  • Brown University
  • Bethel University
  • Karamanoglu Mehmetbey University
  • University of California at Davis
  • University of California at Los Angeles
  • University of California at Riverside
  • University of California at San Diego
  • Utah Valley University
  • University of California at Santa Barbara
  • Carnegie Mellon University
  • University of Colorado Boulder
  • Cornell University
  • Fermi National Accelerator Laboratory
  • Purdue University
  • Florida International University
  • Florida State University
  • Florida Institute of Technology
  • University of Illinois at Chicago
  • University of Iowa
  • Beykent University
  • Bingol University
  • Sinop University
  • Mimar Sinan Guzel Sanatlar University
  • Johns Hopkins University
  • University of Kansas
  • Kansas State University
  • Lawrence Livermore National Laboratory
  • University of Maryland, College Park
  • Massachusetts Institute of Technology
  • University of Minnesota Twin Cities
  • University of Mississippi
  • University of Nebraska-Lincoln
  • SUNY Buffalo
  • Northeastern University
  • Northwestern University
  • University of Notre Dame
  • Ohio State University
  • Princeton University
  • University of Puerto Rico
  • Purdue University Northwest
  • Rice University
  • University of Rochester
  • Rutgers - The State University of New Jersey, New Brunswick
  • University of Tennessee, Knoxville
  • Texas A&M University
  • Texas A&M University at Qatar
  • Texas Tech University
  • Vanderbilt University
  • University of Virginia
  • Wayne State University
  • University of Wisconsin-Madison

Araştırma sonucu: Dergiye katkıMakalebilirkişi

95 Atıf (Scopus)

Özet

Measurements of differential top quark pair t t ¯ cross sections using events produced in proton-proton collisions at a centre-of-mass energy of 13 TeV containing two oppositely charged leptons are presented. The data were recorded by the CMS experiment at the CERN LHC in 2016 and correspond to an integrated luminosity of 35.9 fb −1 . The differential cross sections are presented as functions of kinematic observables of the top quarks and their decay products, the t t ¯ system, and the total number of jets in the event. The differential cross sections are defined both with particle-level objects in a fiducial phase space close to that of the detector acceptance and with parton-level top quarks in the full phase space. All results are compared with standard model predictions from Monte Carlo simulations with next-to-leading-order (NLO) accuracy in quantum chromodynamics (QCD) at matrix-element level interfaced to parton-shower simulations. Where possible, parton-level results are compared to calculations with beyond-NLO precision in QCD. Significant disagreement is observed between data and all predictions for several observables. The measurements are used to constrain the top quark chromomagnetic dipole moment in an effective field theory framework at NLO in QCD and to extract t t ¯ and leptonic charge asymmetries.[Figure not available: see fulltext.].

Orijinal dilİngilizce
Makale numarası149
DergiJournal of High Energy Physics
Hacim2019
Basın numarası2
DOI'lar
Yayın durumuYayınlandı - 1 Şub 2019

Bibliyografik not

Publisher Copyright:
© 2019, The Author(s).

Finansman

We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: the Austrian Federal Ministry of Education, Science and Research and the Austrian Science Fund; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport, and the Croatian Science Foundation; the Research Promotion Foun- Open Access, Copyright CERN, for the benefit of the CMS Collaboration. Article funded by SCOAP3. Individuals have received support from the Marie-Curie programme and the European Research Council and Horizon 2020 Grant, contract No. 675440 (European Union); the Leventis Foundation; the A.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 Ministry of Educa- dation, Cyprus; the Secretariat for Higher Education, Science, Technology and Innovation, Ecuador; the Ministry of Education and Research, Estonian Research Council via IUT23-4 and IUT23-6 and European Regional Development Fund, Estonia; the Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National de Physique Nucléaire et de Physique des Particules/CNRS, and Commissariat à l’Énergie Atomique et aux Énergies Alternatives/CEA, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Research, Development and Innovation Fund, Hungary; the Department of Atomic Energy and the Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Ministry of Science, ICT and Future Planning, and National Research Foundation (NRF), Republic of Korea; the Ministry of Education and Science of the Republic of Latvia; the Lithuanian Academy of Sciences; the Ministry of Education, and University of Malaya (Malaysia); the Ministry of Science of Montenegro; the Mexican Funding Agencies (BUAP, CINVES-TAV, CONACYT, LNS, SEP, and UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science Centre, Poland; the Fundacão para a Ciência e a Tecnologia, Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation, the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, the Russian Foundation for Basic Research, and the National Research Center “Kurchatov Institute”; the Ministry of Education, Science and Technological Development of Serbia; the Secretaría de Estado de Investigación, Desarrollo e Innovación, Programa Consolider-Ingenio 2010, Plan Estatal de Investigación Científica y Técnica y de Innovación 2013–2016, Plan de Ciencia, Tecnología e Innovación 2013-2017 del Principado de Asturias, and Fondo Europeo de Desarrollo Regional, Spain; the Ministry of Science, Technology and Research, Sri Lanka; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the Ministry of Science and Technology, Taipei; the Thailand Center of Excellence in Physics, the Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the National Academy of Sciences of Ukraine, and State Fund for Fundamental Researches, Ukraine; the Science and Technology Facilities Council, U.K.; the U.S. Department of Energy, and the U.S. National Science Foundation.

FinansörlerFinansör numarası
Chulalongkorn Academic
Desarrollo e Innovación
EU-ESF
Excellence of Science30820817
Helsinki Institute of Physics
Institute for Studies in Theoretical Physics and Mathematics
Ministry of Educa
Ministry of Science of Montenegro
Ministry of Science, Technology and Research, Sri Lanka
Secretariat for Higher Education, Science, Technology and Innovation
Secretaría de Estado de Investigación
State Fund for Fundamental Researches
Youth and Sports
National Science Foundation
U.S. Department of Energy
Alfred P. Sloan Foundation
Welch FoundationC-1845
Alexander von Humboldt-Stiftung
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
National Research Centre
Qatar National Research Fund
Ministry of Education and Science
Direktion für Entwicklung und Zusammenarbeit
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Horizon 2020 Framework Programme
Weston Havens Foundation
CERN
Thailand Center of Excellence in Physics
Institute for the Promotion of Teaching Science and Technology
Kanton Zürich
Science and Technology Facilities CouncilST/N000242/1
European Commission
European Research Council
National Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
Department of Atomic Energy, Government of India
Taighde Éireann - Research Ireland
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Ministerstvo Školství, Mládeže a Tělovýchovy
Fundacja na rzecz Nauki Polskiej
Fundação para a Ciência e a Tecnologia
Russian Foundation for Basic Research
Eesti TeadusagentuurIUT23-6, IUT23-4
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Academy of Finland
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Fonds De La Recherche Scientifique - FNRS
Russian Academy of Sciences
Ministry of Education
Belgian Federal Science Policy Office
Chulalongkorn University
Eidgenössische Technische Hochschule Zürich
Opetus- ja Kulttuuriministeriö
Fonds Wetenschappelijk Onderzoek
Agentschap voor Innovatie door Wetenschap en Technologie
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture
Consejo Nacional de Ciencia y Tecnología
Ministry of Education and Science of the Russian Federation
General Secretariat for Research and Technology
Haridus- ja Teadusministeerium
Ministry of Business, Innovation and Employment
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science, ICT and Future Planning
Ministry of Science and Technology
National Research Foundation of Korea
Joint Institute for Nuclear Research
Magyar Tudományos Akadémia
Instituto Nazionale di Fisica Nucleare
A.G. Leventis Foundation
National Science and Technology Development Agency
Paul Scherrer Institut
Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
Narodowe Centrum Nauki2014/15/B/ST2/03998, 2012/07/E/ST2/01406, 2015/19/B/ST2/02861, 2014/14/M/ST2/00428, 2014/13/B/ST2/02543
Universiti Malaya
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
Hrvatska Zaklada za Znanost
Ministry of Education and Science of the Republic of Kazakhstan
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Ministry of Science and Technology, Taiwan
National Academy of Sciences of Ukraine
Centre National de la Recherche Scientifique
Universidad Autónoma de San Luis Potosí
Ministry of Education and Science
Universität Zürich
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Ministarstvo Znanosti, Obrazovanja i Sporta
Horizon 2020675440
Lietuvos Mokslų Akademija
European Regional Development Fund
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
Pakistan Atomic Energy Commission
Institut National de Physique Nucléaire et de Physique des Particules
Nemzeti Kutatási, Fejlesztési és Innovaciós Alap124845, 123842, 125105, 124850, 123959
Federal Agency of Atomic Energy of the Russian Federation
Sociedad Española de Reumatología
Bundesministerium für Bildung, Wissenschaft und Forschung
Board of the Swiss Federal Institutes of Technology
Laboratorio Nacional de Supercómputo del Sureste de Mexico

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