Measurement of the tt¯ cross section and its ratio to the Z production cross section using pp collisions at s=13.6 TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1016/j.physletb.2023.138376

Measurement of the tt¯ cross section and its ratio to the Z production cross section using pp collisions at s=13.6 TeV with the ATLAS detector

The ATLAS collaboration

Aix-Marseille Université
University of Oklahoma
University of Massachusetts
Azerbaijan National Academy of Sciences
National Institute for Nuclear Physics
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University of Göttingen
Royal Holloway University of London
University of Toronto
University of Copenhagen
University of Sussex
Tel Aviv University
Technion-Israel Institute of Technology
Argonne National Laboratory
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King's College London
The University of Tokyo
Johannes Gutenberg University Mainz
IPN Orsay
AGH University of Science and Technology
Northern Illinois University
Ludwig Maximilian University of Munich
Bogazici University
Istanbul University
Fondazione Bruno Kessler
University of Geneva
Rutherford Appleton Laboratory
University of California at Santa Cruz
Université Clermont Auvergne
Radboud University Nijmegen
Alexandru Ioan Cuza University of Iaşi
Laboratório de Instrumentação e Física Experimental de Partículas
University of Granada
Universidad Autónoma de Madrid
Joint Institute for Nuclear Research
McGill University
CAS - Institute of High Energy Physics
University of Rome Tor Vergata
Kyoto University
Lund University
RAS - P.N. Lebedev Physics Institute
University of Bologna
University of Victoria BC
Universidad Nacional de La Plata
Council for Scientific and Industrial Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
Humboldt University of Berlin
National Technical University of Athens
University of Amsterdam
Czech Technical University in Prague
The University of Chicago
University of Washington
University of Oregon
University of Birmingham
University of Naples Federico II
University of Glasgow
Universidad Autónoma de Madrid
University of Valencia
Universidade Federal do Rio de Janeiro
University of Oxford
Brandeis University
University of Michigan, Ann Arbor
German Electron Synchrotron
Iowa State University
University of Sheffield
Université Paris-Saclay
University of Texas at Austin
Heidelberg University
University of Bern
University of Milan
Columbia University
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
University of California at Irvine
High Energy Accelerator Research Organization, Tsukuba
Michigan State University
Duke University
University of Montreal
University of Iowa
Queen Mary University of London
Alikhanov Institute for Theoretical and Experimental Physics
Harvard University
Uppsala University
United States Department of Energy
Comenius University
University of Cape Town
University of Illinois
University of Siegen
City University of New York
University of Science and Technology of China
York University
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University of Thessaly
Stockholm University
Oskar Klein Centre
University of Rome La Sapienza
Cracow
Simon Fraser University
Yale University
University of Texas at Arlington
University of Sydney
Weizmann Institute of Science
University of Bonn
University of Wisconsin-Madison
University of Louisville
University of Wuppertal
University of Melbourne
University of Genoa
Max Planck Institute for Physics (Werner Heisenberg Institute)
SLAC National Accelerator Laboratory
Shanghai Jiao Tong University
University of California at Berkeley
Russian Research Centre Kurchatov Institute
Lancaster University
An-Najah National University
Mohammed V University in Rabat
University of Cambridge
The California State University
California State University Fresno
Sorbonne Université
Tufts University
University of Freiburg
University of Fribourg
Gaziantep University
Bahcesehir University
Stony Brook University
University of Innsbruck
University College London
Carleton University
National and Kapodistrian University of Athens
Moscow Engineering Physics Institute
University of Hassan II Casablanca
Université Grenoble Alpes
University of Arizona
University of Manchester
University of Pittsburgh
University of Colorado Boulder
University of Pisa
University of Tsukuba
Technische Universität Dresden
University of Oslo
Boston University
Institute for High Energy Physics
Lomonosov Moscow State University
University of Liverpool
Institute for High Energy Physics
Ohio State University
University of Johannesburg
University of South Africa
Tokyo Metropolitan University
Universidad Técnica Federico Santa Maria
Slovak Academy of Sciences
University of Bergen
Oklahoma State University
Academia Sinica - Institute of Physics
Justus Liebig University Giessen
Ankara University
Indiana University Bloomington
University of Calabria
Charles University
Westmont College
Autonomous University of Barcelona
University of Minho
Istanbul Bilgi University
Roma Tre University
Palacký University Olomouc
Universidade Federal de Juiz de Fora
Tbilisi State University
Tomsk State University
Moscow Institute of Physics and Technology
University of Pennsylvania School of Arts and Sciences
Nanjing University
Tsinghua University
The Collaborative Innovation Center of Quantum Matter (CICQM)
Kobe University
Chinese University of Hong Kong
University of Chinese Academy of Sciences
National Tsing Hua University
Aristotle University of Thessaloniki
Czech Academy of Sciences
TU Dortmund University
University of Ljubljana
Ben-Gurion University of the Negev
University of Edinburgh
University of Udine
University of Lisbon
University of Naples Parthenope
University of British Columbia
Institute of Particle Physics
New York University
Shandong University
Universidad de Buenos Aires
Southern Methodist University
University of Adelaide
Mohamed I University
Pontificia Universidad Católica de Chile
Universidade Federal de São João del-Rei
Universidade de São Paulo
Cadi Ayyad University
University of Warwick
Demokritos National Centre for Scientific Research
Peter the Great St. Petersburg Polytechnic University
National Institute of Physics, College of Science, University of the Philippines, Diliman
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Nagasaki Institute of Applied Science
University of Alberta
University of the Aegean
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California State University East Bay
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Osaka University
Belarus Academy of Sciences
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Technical University of Munich
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Tokyo Institute of Technology
Yeditepe University
University of Texas at Dallas
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Georgian National Academy of Sciences
Ilia State University
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Waseda University
Kyushu University
Ochanomizu University
Manhattan College
University of Belgrade
Istanbul Aydin University
Hellenic Open University
Hong Kong University of Science and Technology
The University of Hong Kong
Universidad Antonio Nariño
KTH Royal Institute of Technology
CNRS
A. Alikhanian Yerevan Institute of Physics
California State University Sacramento
Hiroshima Institute of Technology
Okayama University
Jagiellonian University in Kraków
Transilvania University of Brasov
National Institute for Research and Development of Isotopic and Molecular Technologies
IN2P3 - Institut National de Physique Nucléaire et de Physique Des Particules
Louisiana Tech University
Sun Yat-Sen University
Bulgarian Academy of Sciences
Washington College
University of Sharjah
TOBB University of Economics and Technology
University of Hamburg
Kyoto University of Education
Mohammed VI Polytechnic University
Wigner Research Centre for Physics
Giresun Universitesi
Mongolian Academy of Sciences
University of Coimbra
Peking University
Centro Studi e Ricerche Enrico Fermi

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17 Citations (Scopus)

Abstract

The inclusive top-quark-pair production cross section σ_tt¯ and its ratio to the Z-boson production cross section have been measured in proton–proton collisions at s=13.6 TeV, using 29 fb⁻¹ of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and b-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be σ_tt¯=850±3(stat.)±18(syst.)±20(lumi.) pb. The ratio of the tt¯ and the Z-boson production cross sections is also measured, where the Z-boson contribution is determined for inclusive e⁺e⁻ and μ⁺μ⁻ events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the tt¯ cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, R_tt¯/Z=1.145±0.003(stat.)±0.021(syst.)±0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.

Original language	English
Article number	138376
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	848
DOIs	https://doi.org/10.1016/j.physletb.2023.138376
Publication status	Published - Jan 2024

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2023.138376

Cite this

@article{45ad887647d44cb7a0d0652f4ad3f744,

title = "Measurement of the tt¯ cross section and its ratio to the Z production cross section using pp collisions at s=13.6 TeV with the ATLAS detector",

abstract = "The inclusive top-quark-pair production cross section σtt¯ and its ratio to the Z-boson production cross section have been measured in proton–proton collisions at s=13.6 TeV, using 29 fb−1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and b-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be σtt¯=850±3(stat.)±18(syst.)±20(lumi.) pb. The ratio of the tt¯ and the Z-boson production cross sections is also measured, where the Z-boson contribution is determined for inclusive e+e− and μ+μ− events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the tt¯ cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, Rtt¯/Z=1.145±0.003(stat.)±0.021(syst.)±0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.",

author = "\{The ATLAS collaboration\} and G. Aad and B. Abbott and Abbott, \{D. C.\} and O. Abdinov and Abud, \{A. Abed\} and K. Abeling and Abhayasinghe, \{D. K.\} and Abidi, \{S. H.\} and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and B. Achkar and S. Adachi and L. Adam and Bourdarios, \{C. Adam\} and L. Adamczyk and L. Adamek and J. Adelman and M. Adersberger and A. Adiguzel and S. Adorni and T. Adye and Affolder, \{A. A.\} and Y. Afik and C. Agapopoulou and Agaras, \{M. N.\} and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and F. Ahmadov and Ahmed, \{W. S.\} and X. Ai and G. Aielli and S. Akatsuka and {\AA}kesson, \{T. P.A.\} and E. Akilli and Akimov, \{A. V.\} and \{Al Khoury\}, K. and Alberghi, \{G. L.\} and J. Albert and Verzini, \{M. J.Alconada\} and S. Alderweireldt and M. Aleksa and Aleksandrov, \{I. N.\} and Connell, \{S. H.\} and N. Govender and L. Truong",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2024",

month = jan,

doi = "10.1016/j.physletb.2023.138376",

language = "English",

volume = "848",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Measurement of the tt¯ cross section and its ratio to the Z production cross section using pp collisions at s=13.6 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abdinov, O.

AU - Abud, A. Abed

AU - Abeling, K.

AU - Abhayasinghe, D. K.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Achkar, B.

AU - Adachi, S.

AU - Adam, L.

AU - Bourdarios, C. Adam

AU - Adamczyk, L.

AU - Adamek, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adorni, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agapopoulou, C.

AU - Agaras, M. N.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ai, X.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Verzini, M. J.Alconada

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Connell, S. H.

AU - Govender, N.

AU - Truong, L.

PY - 2024/1

Y1 - 2024/1

N2 - The inclusive top-quark-pair production cross section σtt¯ and its ratio to the Z-boson production cross section have been measured in proton–proton collisions at s=13.6 TeV, using 29 fb−1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and b-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be σtt¯=850±3(stat.)±18(syst.)±20(lumi.) pb. The ratio of the tt¯ and the Z-boson production cross sections is also measured, where the Z-boson contribution is determined for inclusive e+e− and μ+μ− events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the tt¯ cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, Rtt¯/Z=1.145±0.003(stat.)±0.021(syst.)±0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.

AB - The inclusive top-quark-pair production cross section σtt¯ and its ratio to the Z-boson production cross section have been measured in proton–proton collisions at s=13.6 TeV, using 29 fb−1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and b-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be σtt¯=850±3(stat.)±18(syst.)±20(lumi.) pb. The ratio of the tt¯ and the Z-boson production cross sections is also measured, where the Z-boson contribution is determined for inclusive e+e− and μ+μ− events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the tt¯ cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, Rtt¯/Z=1.145±0.003(stat.)±0.021(syst.)±0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.

UR - https://www.scopus.com/pages/publications/85183680739

U2 - 10.1016/j.physletb.2023.138376

DO - 10.1016/j.physletb.2023.138376

M3 - Article

AN - SCOPUS:85183680739

SN - 0370-2693

VL - 848

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

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

M1 - 138376

ER -

Measurement of the tt¯ cross section and its ratio to the Z production cross section using pp collisions at s=13.6 TeV with the ATLAS detector

Abstract

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