Measurement of lepton differential distributions and the top quark mass in t t ¯ production in pp collisions at s = 8 TeV with the ATLAS detector

. 2017 ; 77 (11) : 804. [epub] 20171125

Status PubMed-not-MEDLINE Jazyk angličtina Země Francie Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid31999283

This paper presents single lepton and dilepton kinematic distributions measured in dileptonic t t ¯ events produced in 20.2 fb - 1 of s = 8 TeV pp collisions recorded by the ATLAS experiment at the LHC. Both absolute and normalised differential cross-sections are measured, using events with an opposite-charge e μ pair and one or two b-tagged jets. The cross-sections are measured in a fiducial region corresponding to the detector acceptance for leptons, and are compared to the predictions from a variety of Monte Carlo event generators, as well as fixed-order QCD calculations, exploring the sensitivity of the cross-sections to the gluon parton distribution function. Some of the distributions are also sensitive to the top quark pole mass; a combined fit of NLO fixed-order predictions to all the measured distributions yields a top quark mass value of m t pole = 173.2 ± 0.9 ± 0.8 ± 1.2 GeV, where the three uncertainties arise from data statistics, experimental systematics, and theoretical sources.

2 Physikalisches Institut Georg August Universität Göttingen Germany

2 Physikalisches Institut Justus Liebig Universität Giessen Giessen Germany

Academia Sinica Grid Computing Institute of Physics Academia Sinica Taipei Taiwan

Albert Einstein Center for Fundamental Physics Laboratory for High Energy Physics University of Bern Bern Switzerland

B 1 Stepanov Institute of Physics National Academy of Sciences of Belarus Minsk Republic of Belarus

Budker Institute of Nuclear Physics SB RAS Novosibirsk Russia

Cavendish Laboratory University of Cambridge Cambridge UK

Center for High Energy Physics University of Oregon Eugene OR USA

Centre de Calcul de l'Institut National de Physique Nucléaire et de Physique des Particules Villeurbanne France

Centro de Física Nuclear da Universidade de Lisboa Lisbon Portugal

Centro de Investigaciones Universidad Antonio Narino Bogota Colombia

CERN Geneva Switzerland

CPPM Aix Marseille Université and CNRS IN2P3 Marseille France

Czech Technical University Prague Praha Czech Republic

D 5 Skobeltsyn Institute of Nuclear Physics M 5 Lomonosov Moscow State University Moscow Russia

Departamento de Física Pontificia Universidad Católica de Chile Santiago Chile

Departamento de Fisica Teorica C 15 Universidad Autonoma de Madrid Madrid Spain

Departamento de Fisica Teorica y del Cosmos Universidad de Granada Granada Spain

Departamento de Física Universidad de Buenos Aires Buenos Aires Argentina

Departamento de Física Universidad Técnica Federico Santa María Valparaíso Chile

Departamento de Fisica Universidade do Minho Braga Portugal

Departement de Physique Nucleaire et Corpusculaire Université de Genève Geneva Switzerland

Department for Physics and Technology University of Bergen Bergen Norway

Department of Experimental Particle Physics Jožef Stefan Institute and Department of Physics University of Ljubljana Ljubljana Slovenia

Department of Modern Physics and State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei Anhui China

Department of Particle Physics The Weizmann Institute of Science Rehovot Israel

Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania

Department of Physics and Astronomy Iowa State University Ames IA USA

Department of Physics and Astronomy Key Laboratory for Particle Physics Astrophysics and Cosmology Ministry of Education Shanghai Key Laboratory for Particle Physics and Cosmology Shanghai Jiao Tong University Shanghai Shanghai China

Department of Physics and Astronomy Michigan State University East Lansing MI USA

Department of Physics and Astronomy Tufts University Medford MA USA

Department of Physics and Astronomy University College London London UK

Department of Physics and Astronomy University of California Irvine Irvine CA USA

Department of Physics and Astronomy University of New Mexico Albuquerque NM USA

Department of Physics and Astronomy University of Pittsburgh Pittsburgh PA USA

Department of Physics and Astronomy University of Sheffield Sheffield UK

Department of Physics and Astronomy University of Sussex Brighton UK

Department of Physics and Astronomy University of Uppsala Uppsala Sweden

Department of Physics and Astronomy University of Victoria Victoria BC Canada

Department of Physics and Astronomy York University Toronto ON Canada

Department of Physics Ankara University Ankara Turkey

Department of Physics Aristotle University of Thessaloniki Thessaloniki Greece

Department of Physics Bogazici University Istanbul Turkey

Department of Physics Boston University Boston MA USA

Department of Physics Brandeis University Waltham MA USA

Department of Physics Carleton University Ottawa ON Canada

Department of Physics Duke University Durham NC USA

Department of Physics Engineering Gaziantep University Gaziantep Turkey

Department of Physics Humboldt University Berlin Germany

Department of Physics Indiana University Bloomington IN USA

Department of Physics Institute for Advanced Study The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China

Department of Physics McGill University Montreal QC Canada

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Department of Physics Oklahoma State University Stillwater OK USA

Department of Physics Oxford University Oxford UK

Department of Physics Royal Holloway University of London Surrey UK

Department of Physics Shinshu University Nagano Japan

Department of Physics Simon Fraser University Burnaby BC Canada

Department of Physics Stockholm University Stockholm Sweden

Department of Physics Technion Israel Institute of Technology Haifa Israel

Department of Physics The Chinese University of Hong Kong Shatin NT Hong Kong

Department of Physics The University of Hong Kong Hong Kong China

Department of Physics The University of Michigan Ann Arbor MI USA

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Department of Physics University of Oslo Oslo Norway

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Department of Physics University of Toronto Toronto ON Canada

Department of Physics University of Warwick Coventry UK

Department of Physics University of Washington Seattle WA USA

Department of Physics University of Wisconsin Madison WI USA

Department of Physics Yale University New Haven CT USA

Department of Subnuclear Physics Institute of Experimental Physics of the Slovak Academy of Sciences Kosice Slovak Republic

Department Physik Universität Siegen Siegen Germany

Departments of Physics and Astronomy and Chemistry Stony Brook University Stony Brook NY USA

DESY Hamburg and Zeuthen Germany

Dipartimento di Chimica Fisica e Ambiente Università di Udine Udine Italy

Dipartimento di Fisica e Astronomia Università di Bologna Bologna Italy

Dipartimento di Fisica E Fermi Università di Pisa Pisa Italy

Dipartimento di Fisica Sapienza Università di Roma Rome Italy

Dipartimento di Fisica Università della Calabria Rende Italy

Dipartimento di Fisica Università di Genova Genoa Italy

Dipartimento di Fisica Università di Milano Milan Italy

Dipartimento di Fisica Università di Napoli Naples Italy

Dipartimento di Fisica Università di Pavia Pavia Italy

Dipartimento di Fisica Università di Roma Tor Vergata Rome Italy

Dipartimento di Matematica e Fisica Università del Salento Lecce Italy

Dipartimento di Matematica e Fisica Università Roma Tre Rome Italy

Division of Physics TOBB University of Economics and Technology Ankara Turkey

DSM IRFU Gif sur Yvette France

E Andronikashvili Institute of Physics Iv Javakhishvili Tbilisi State University Tbilisi Georgia

Electrical Circuits Department Federal University of Juiz de Fora Juiz de Fora Brazil

Enrico Fermi Institute University of Chicago Chicago IL USA

Faculdade de Ciências Universidade de Lisboa Lisbon Portugal

Faculté des Sciences Ain Chock Réseau Universitaire de Physique des Hautes Energies Université Hassan 2 Casablanca Morocco

Faculté des Sciences Semlalia Université Cadi Ayyad LPHEA Marrakech Marrakech Morocco

Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco

Faculté des Sciences Université Mohammed 5 Rabat Morocco

Faculty of Applied Information Science Hiroshima Institute of Technology Hiroshima Japan

Faculty of Engineering and Natural Sciences Bahcesehir University Istanbul Turkey

Faculty of Engineering and Natural Sciences Istanbul Bilgi University Istanbul Turkey

Faculty of Mathematics and Physics Charles University Prague Czech Republic

Faculty of Mathematics Physics and Informatics Comenius University Bratislava Slovak Republic

Faculty of Physics and Applied Computer Science AGH University of Science and Technology Krakow Poland

Faculty of Pure and Applied Sciences and Center for Integrated Research in Fundamental Science and Engineering University of Tsukuba Tsukuba Japan

Faculty of Science Kyoto University Kyoto Japan

Faculty of Science Okayama University Okayama Japan

Fakultät für Mathematik und Naturwissenschaften Fachgruppe Physik Bergische Universität Wuppertal Wuppertal Germany

Fakultät für Mathematik und Physik Albert Ludwigs Universität Freiburg Germany

Fakultät für Physik Ludwig Maximilians Universität München Münich Germany

Fakultät für Physik und Astronomie Julius Maximilians Universität Würzburg Germany

Federal University of Sao Joao del Rei Sao Joao del Rei Brazil

Fysiska institutionen Lunds universitet Lund Sweden

Graduate School of Science and Kobayashi Maskawa Institute Nagoya University Nagoya Japan

Graduate School of Science and Technology Tokyo Metropolitan University Tokyo Japan

Graduate School of Science Kobe University Kobe Japan

Graduate School of Science Osaka University Osaka Japan

Group of Particle Physics University of Montreal Montreal QC Canada

High Energy Physics Division Argonne National Laboratory Argonne IL USA

High Energy Physics Institute Tbilisi State University Tbilisi Georgia

Homer L Dodge Department of Physics and Astronomy University of Oklahoma Norman OK USA

Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania

ICTP Trieste Italy

INFN e Laboratori Nazionali di Frascati Frascati Italy

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Institut de Física d'Altes Energies The Barcelona Institute of Science and Technology Barcelona Spain

Institut für Astro und Teilchenphysik Leopold Franzens Universität Innsbruck Austria

Institut für Kern und Teilchenphysik Technische Universität Dresden Dresden Germany

Institut für Physik Universität Mainz Mainz Germany

Institute for Mathematics Astrophysics and Particle Physics Radboud University Nijmegen Nikhef Nijmegen The Netherlands

Institute for Theoretical and Experimental Physics Moscow Russia

Institute of High Energy Physics Chinese Academy of Sciences Beijing China

Institute of Nuclear Physics Polish Academy of Sciences Krakow Poland

Institute of Physics Academia Sinica Taipei Taiwan

Institute of Physics Academy of Sciences of the Czech Republic Praha Czech Republic

Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan

Institute of Physics University of Belgrade Belgrade Serbia

Instituto de Fisica Corpuscular Centro Mixto Universidad de Valencia CSIC Valencia Spain

Instituto de Física La Plata Universidad Nacional de La Plata and CONICET La Plata Argentina

Instituto de Fisica Universidade de Sao Paulo São Paulo Brazil

International Center for Elementary Particle Physics and Department of Physics The University of Tokyo Tokyo Japan

Istanbul Aydin University Istanbul Turkey

Joint Institute for Nuclear Research JINR Dubna Dubna Russia

KEK High Energy Accelerator Research Organization Tsukuba Japan

Kirchhoff Institut für Physik Ruprecht Karls Universität Heidelberg Heidelberg Germany

Kyoto University of Education Kyoto Japan

Laboratoire de Physique Nucléaire et de Hautes Energies UPMC and Université Paris Diderot and CNRS IN2P3 Paris France

Laboratoire de Physique Subatomique et de Cosmologie Université Grenoble Alpes CNRS IN2P3 Grenoble France

Laboratório de Instrumentação e Física Experimental de Partículas LIP Lisbon Portugal

Laboratory for Particle Physics and Cosmology Harvard University Cambridge MA USA

LAL Univ Paris Sud CNRS IN2P3 Université Paris Saclay Orsay France

LAPP CNRS IN2P3 and Université Savoie Mont Blanc Annecy le Vieux France

Lehrstuhl für Experimentelle Physik 4 Technische Universität Dortmund Dortmund Germany

Louisiana Tech University Ruston LA USA

Marian Smoluchowski Institute of Physics Jagiellonian University Krakow Poland

Max Planck Institut für Physik Münich Germany

Nagasaki Institute of Applied Science Nagasaki Japan

National Research Centre Kurchatov Institute B P Konstantinov Petersburg Nuclear Physics Institute St Petersburg Russia

National Research Nuclear University MEPhI Moscow Russia

Nevis Laboratory Columbia University Irvington NY USA

Niels Bohr Institute University of Copenhagen Kobenhavn Denmark

Nikhef National Institute for Subatomic Physics University of Amsterdam Amsterdam The Netherlands

Ohio State University Columbus OH USA

Oliver Lodge Laboratory University of Liverpool Liverpool UK

P N Lebedev Physical Institute of the Russian Academy of Sciences Moscow Russia

Palacký University RCPTM Olomouc Czech Republic

Particle Physics Department Rutherford Appleton Laboratory Didcot UK

Physics Department Brookhaven National Laboratory Upton NY USA

Physics Department Lancaster University Lancaster UK

Physics Department National and Kapodistrian University of Athens Athens Greece

Physics Department National Institute for Research and Development of Isotopic and Molecular Technologies Cluj Napoca Romania

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Physics Division Lawrence Berkeley National Laboratory University of California Berkeley CA USA

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Physikalisches Institut University of Bonn Bonn Germany

Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel

Research Center for Advanced Particle Physics and Department of Physics Kyushu University Fukuoka Japan

Research Institute for Nuclear Problems of Byelorussian State University Minsk Republic of Belarus

Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz CA USA

School of Physics and Astronomy Queen Mary University of London London UK

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School of Physics Shandong University Jinan Shandong China

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SLAC National Accelerator Laboratory Stanford CA USA

State Research Center Institute for High Energy Physics NRC KI Protvino Russia

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The Oskar Klein Centre Stockholm Sweden

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