Measurement of the ttproduction cross-section using eμ events with b-tagged jets in ppcollisions at √s=13 TeV with the ATLAS detector

The ATLAS collaboration

Measurement of the ttproduction cross-section using eμ events with b-tagged jets in ppcollisions at √s=13 TeV with the ATLAS detector

The ATLAS collaboration

Mohamed I University
Aix-Marseille Université and CNRS/IN2P3
University of Oklahoma
University of Iowa
Azerbaijan National Academy of Sciences
Université Paris-Sud and CNRS/IN2P3
University of Amsterdam
University of California at Santa Cruz
University of Sussex
Tel Aviv University
Technion-Israel Institute of Technology
University of Oregon
Stockholm University
The Oskar Klein Centre
NFN Gruppo Collegato di Udine
Abdus Salam International Centre for Theoretical Physics
King's College London
AGH University of Krakow
United States Department of Energy
Northern Illinois University
Ludwig Maximilian University of Munich
Didcot
University of Liverpool
University of Belgrade
University of Göttingen
Laboratório de Instrumentação e Física Experimental de Partículas
University of Granada
Boston University
Joint Institute for Nuclear Research
National Institute for Nuclear Physics
University of Rome Tor Vergata
Lund University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Bologna
University of Victoria BC
Université Grenoble Alpes
Universidad Nacional de La Plata
CERN
Transilvania University of Brasov
National Technical University of Athens
Czech Technical University in Prague
University of Salento
The University of Chicago
Columbia University
University of Birmingham
University of Naples Federico II
University of Copenhagen
Kobe University
University of Washington
University of Valencia
Lawrence Berkeley National Laboratory
High Energy Accelerator Research Organization, Tsukuba
Universidade Federal do Rio de Janeiro
Brandeis University
University of Michigan, Ann Arbor
University of Coimbra
University of Lisbon
University of Sheffield
University of Geneva
University of Texas at Austin
Heidelberg University
University of Milan
National and Kapodistrian University of Athens
Technische Universität Dresden
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Institute for High Energy Physics
University of Pisa
Moscow Engineering Physics Institute
Michigan State University
Duke University
University of Montreal
Bogazici University
SLAC National Accelerator Laboratory
Queen Mary University of London
University of Freiburg
University of Cambridge
University of Bonn
Alikhanov Institute for Theoretical and Experimental Physics
University of Oxford
Johannes Gutenberg University Mainz
The University of Tokyo
German Electron Synchrotron
Comenius University
University of Illinois at Urbana-Champaign
University of Siegen
TRIUMF
CEA Saclay (Commissariat a lʼEnergie Atomique)
University of Rome La Sapienza
CAS - Institute of High Energy Physics
Yale University
Charles University
Stony Brook University
University of Pennsylvania
Polish Academy of Sciences
University of Wisconsin
University of Louisville
University of Wuppertal
University of Melbourne
University of Genoa
Max Planck Institute for Physics (Werner Heisenberg Institute)
University of Manchester
CNRS/IN2P3 and Université de Savoie
Universidad Autónoma de Madrid
Lancaster University
Petersburg Nuclear Physics Institute (PNPI)
University of Glasgow
University of Toronto
California State University Fresno
Ohio State University
Laboratoire de Physique Nucléaire et de Hautes Energies
Tufts University
University of Bern
Gaziantep University
Universidade de São Paulo
University of Fribourg
University of Warwick
New York University
Bahcesehir University
McGill University
University College London
Carleton University
University of Massachusetts
University of Hassan II Casablanca
Uppsala University
Royal Holloway University of London
University of Pittsburgh
Humboldt University of Berlin
The University of Sydney
Argonne National Laboratory
Pontificia Universidad Católica de Chile
University of Udine
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
Chinese University of Hong Kong
The University of Hong Kong
Hong Kong University of Science and Technology
Universidad de Buenos Aires
SUNY Albany
Université Clermont Auvergne
University of Texas at Arlington
Tokyo Metropolitan University
Weizmann Institute of Science
University of Edinburgh
Universidad Técnica Federico Santa Maria
Slovak Academy of Sciences
University of Bergen
Simon Fraser University
University of Oslo
TU Dortmund University
University of Calabria
Ankara University
Shanghai Jiao Tong University
Oklahoma State University
Southern Methodist University
Horia Hulubei National Institute of Physics and Nuclear Engineering
Radboud University Nijmegen
Autonomous University of Barcelona
University of California at Irvine
University of Cape Town
University of Porto
Roma Tre University
Universidade Federal de Juiz de Fora
Istanbul Bilgi University
Harvard University
Tomsk State University
Iowa State University
Nanjing University
Tsinghua University
Mohammed V University in Rabat
University of Arizona
Indiana University Bloomington
Czech Academy of Sciences
Palacký University Olomouc
Jožef Stefan Institute
University of Johannesburg
University of Naples Parthenope
Institute of Particle Physics
University of Alberta
University of British Columbia
Ivane Javakhishvili Tbilisi State University
Universidade Federal de São João del-Rei
University of Pavia
Shandong University
Justus Liebig University Giessen
Cadi Ayyad University
The University of Osaka
Peter the Great St. Petersburg Polytechnic University
Nagasaki Institute of Applied Science
University of Science and Technology of China
National Center for Energy, Nuclear Science and Technology
Aristotle University of Thessaloniki
Lomonosov Moscow State University
University of New Mexico
Council for Scientific and Industrial Research
West University of Timisoara
Louisiana Tech University
ICREA
University of Innsbruck
A. Alikhanian Yerevan Institute of Physics
University of Tsukuba
Belarus Academy of Sciences
Shinshu University
Nagoya University
Academia Sinica - Institute of Physics
Belarusian State University
University of the Witwatersrand
National Tsing Hua University
Waseda University
Kyoto University
Institute of Science Tokyo
University of Texas at Dallas
Adelaide University
Kyushu University
Georgian Technical University
Ochanomizu University
Manhattan College
Istanbul Aydin University
University of Würzburg
Hellenic Open University
Universidad Antonio Nariño
KTH Royal Institute of Technology
York University Toronto
Hampton University
Moscow Institute of Physics and Technology
Hiroshima Institute of Technology
Okayama University
University of Minho
Jagiellonian University in Kraków
Eötvös Loránd University
International School for Advanced Studies
National Institute for Research and Development of Isotopic and Molecular Technologies
University of South Carolina
CNRS/IN2P3
Sun Yat-Sen University
Bulgarian Academy of Sciences
TOBB University of Economics and Technology
Kyoto University of Education
Stanford University
Wigner Research Centre for Physics
Tbilisi State University
Flensburg University of Applied Sciences
University of Malaya

Research output: Contribution to journal › Article › peer-review

108 Scopus citations

Abstract

This paper describes a measurement of the inclusive top quark pair production cross-section (σ_tt̄) with a data sample of 3.2 fb⁻¹of proton-proton collisions at a centre-of-mass energy of √s=13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron-muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σ_tt̄and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σ_tt̄ = 818±8 (stat)± 27 (syst)±19 (lumi)± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented.

Original language	English
Pages (from-to)	136-157
Number of pages	22
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	761
State	Published - 2016
Externally published	Yes

Cite this

@article{020cd89685b44068995be9e75e722c57,

title = "Measurement of the ttproduction cross-section using eμ events with b-tagged jets in ppcollisions at √s=13 TeV with the ATLAS detector",

abstract = "This paper describes a measurement of the inclusive top quark pair production cross-section (σt{\=t}) with a data sample of 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of √s=13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron-muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σt{\=t}and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σt{\=t} = 818±8 (stat)± 27 (syst)±19 (lumi)± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4\%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented.",

author = "\{The ATLAS collaboration\} and M. Aaboud and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and B. Abeloos and R. Aben and \{Abou Zeid\}, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and J. Adelman and S. Adomeit and T. Adye and Affolder, \{A. A.\} and T. Agatonovic-Jovin and J. Agricola and Aguilar-Saavedra, \{J. A.\} and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and B. Ali and M. Aliev and G. Alimonti and J. Alison and Alkire, \{S. P.\} and Allbrooke, \{B. M.M.\} and Allen, \{B. W.\} and Allport, \{P. P.\} and A. Aloisio and A. Alonso and L. Yuan",

note = "Publisher Copyright: {\textcopyright} 2016 The Author(s).",

year = "2016",

language = "英语",

volume = "761",

pages = "136--157",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Measurement of the ttproduction cross-section using eμ events with b-tagged jets in ppcollisions at √s=13 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Abeloos, B.

AU - Aben, R.

AU - Abou Zeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Agricola, J.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Ali, B.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alison, J.

AU - Alkire, S. P.

AU - Allbrooke, B. M.M.

AU - Allen, B. W.

AU - Allport, P. P.

AU - Aloisio, A.

AU - Alonso, A.

AU - Yuan, L.

PY - 2016

Y1 - 2016

N2 - This paper describes a measurement of the inclusive top quark pair production cross-section (σtt̄) with a data sample of 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of √s=13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron-muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σtt̄and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σtt̄ = 818±8 (stat)± 27 (syst)±19 (lumi)± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented.

AB - This paper describes a measurement of the inclusive top quark pair production cross-section (σtt̄) with a data sample of 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of √s=13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron-muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σtt̄and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σtt̄ = 818±8 (stat)± 27 (syst)±19 (lumi)± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented.

UR - https://www.scopus.com/pages/publications/85040840865

M3 - 文章

AN - SCOPUS:85040840865

SN - 0370-2693

VL - 761

SP - 136

EP - 157

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

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

ER -

Measurement of the ttproduction cross-section using eμ events with b-tagged jets in ppcollisions at √s=13 TeV with the ATLAS detector

Abstract

Other files and links

Fingerprint

Cite this