Precise measurement of the tt¯ production cross-section and lepton differential distributions in eμ dilepton events from s=13TeVpp collisions with the ATLAS detector

L. Zwalinski; O. Zormpa; T. G. Zorbas; A. Zografos; K. Zoch; A. Zoccoli; L. Živković; M. Ziolkowski; J. Zinsser; N. I. Zimine; K. Zhukov; X. Zhuang; Y. Zhu; X. Zhu; J. Zhu; Y. Zhou; N. Zhou; H. Zhou; B. Zhou; D. Zhong; Z. Zheng; X. Zheng; K. Zheng; J. Zheng; A. Zhemchugov; Z. Zhao; Y. Zhao; T. Zhao; H. Zhao; Z. Zhang; Y. Zhang; T. Zhang; S. Zhang; R. Zhang; P. Zhang; L. Zhang; J. Zhang; G. Zhang; D. F. Zhang; B. Zhang; D. Zerwas; S. Zenz; T. Ženiš; O. Zenin; D. T. Zenger; H. Zeng; C. Zeitnitz; O. Zaplatilek; R. Zanzottera; J. Zang; J. A. Zamora Saa; S. Zambito; T. Zakareishvili; Z. K. Zak; A. Zaio; I. Zahir; B. Zabinski; M. Zaazoua; L. Yue; R. Yuan; M. Yuan; J. Yuan; Y. Yu; N. D. Young; I. N.L. Young; C. Young; C. J.S. Young; K. Yorita; T. P. Yildirim; M. R. Yexley; B. Yeo; I. Yeletskikh; Y. Yeh; X. Ye; S. Ye; J. Ye; C. L. Yardley; W. M. Yao; Y. Yang; X. Yang; T. Yang; S. Yang; H. T. Yang; H. J. Yang; Z. Yan; S. Yan; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Yuan-Tang Chou

doi:10.1140/epjc/s10052-026-15311-0

Precise measurement of the tt¯ production cross-section and lepton differential distributions in eμ dilepton events from s=13TeVpp collisions with the ATLAS detector

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Precise measurement of the tt¯ production cross-section and lepton differential distributions in eμ dilepton events from s=13TeVpp collisions with the ATLAS detector

L. Zwalinski, O. Zormpa, T. G. Zorbas, A. Zografos, K. Zoch, A. Zoccoli, L. Živković, M. Ziolkowski, J. Zinsser, N. I. Zimine, …

The European physical journal. C, Particles and fields, 卷.86(5), 頁.470

01/05/2026

DOI: https://doi.org/10.1140/epjc/s10052-026-15311-0

Web of Science ID: WOS:001788821800001

摘要

The inclusive top quark pair (t (t) over bar) cross-section sigma(t (t) over bar) has been measured in proton-proton collisions at root s = 13 TeV, using 140 fb(-1) of data collected by the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge e mu pair and b-tagged jets, the crosssection is measured to be:sigma(t (t) over bar) = 829.3 +/- 1.3 (stat) +/- 8.0 (syst) +/- 7.3 (lumi) +/- 1.9 (beam) pb,where the uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, the integrated luminosity, and the proton beam energy, giving a total uncertainty of 1.3%. The result is used to determine the top quark pole mass via the dependence of the predicted cross-section on m(t)(pole), giving m(t)(pole) = 172.8(-1.7)(+1.5) GeV. The same event sample is used to measure absolute and normalised differential cross-sections for the t (t) over bar -> e mu v (v) over barb (b) over bar process as a function of single-lepton and dilepton kinematic variables. Complementary measurements of e mu b (b) over bar production, treating both t (t) over bar and Wt events as signal, are also provided. Both sets of differential cross-sections are compared to the predictions of various Monte Carlo event generators, demonstrating that the state-of-the-art generators POWHEG MiNNLO and POWHEG bb4l describe the data better than POWHEG hvq.

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題名: Precise measurement of the tt¯ production cross-section and lepton differential distributions in eμ dilepton events from s=13TeVpp collisions with the ATLAS detector
創作者：: L. Zwalinski - European Organization for Nuclear Research
O. Zormpa - National Centre of Scientific Research "Demokritos"
T. G. Zorbas - University of Sheffield
A. Zografos - European Organization for Nuclear Research
K. Zoch - Harvard University Press
A. Zoccoli - Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
L. Živković - University of Belgrade
M. Ziolkowski - University of Siegen
J. Zinsser - Heidelberg University
N. I. Zimine - Directorate-General for International Cooperation and Development
K. Zhukov - Indiana University
X. Zhuang - Chinese Academy of Sciences
Y. Zhu - University of Science and Technology of China
Y. Zhu - University of Science and Technology of China
X. Zhu - Shanghai Jiao Tong University
J. Zhu - University of Michigan
Y. Zhou - University of Arizona
Y. Zhou - University of Arizona
Y. Zhou - University of Arizona
N. Zhou - CPC Heilongjiang Provincial Committee Party School
H. Zhou - University of Arizona
B. Zhou - Shanghai Jiao Tong University
B. Zhou - Shanghai Jiao Tong University
D. Zhong - University of Illinois System
Z. Zheng - SLAC National Accelerator Laboratory
X. Zheng - University of Science and Technology of China
K. Zheng - University of Illinois System
J. Zheng - Nanjing University
A. Zhemchugov - Directorate-General for International Cooperation and Development
Z. Zhao - University of Science and Technology of China
Z. Zhao - University of Science and Technology of China
Y. Zhao - Carleton University
T. Zhao - Shandong University
H. Zhao - University of Washington
Z. Zhang - Lawrence Berkeley National Laboratory
Z. Zhang - Lawrence Berkeley National Laboratory
Z. Zhang - Lawrence Berkeley National Laboratory
Y. Zhang - University of Science and Technology of China
Y. Zhang - University of Science and Technology of China
Y. Zhang - University of Science and Technology of China
Y. Zhang - University of Science and Technology of China
T. Zhang - The University of Tokyo
S. Zhang - Université Fédérale de Toulouse Midi-Pyrénées
R. Zhang - Nanjing University
P. Zhang - Chinese Academy of Sciences
L. Zhang - University of Science and Technology of China
L. Zhang - University of Science and Technology of China
J. Zhang - Argonne National Laboratory
J. Zhang - Argonne National Laboratory
G. Zhang - Chinese Academy of Sciences
D. F. Zhang - University of Sheffield
B. Zhang - University of Warwick
D. Zerwas - Université Paris-Saclay
S. Zenz - Queen Mary University of London
T. Ženiš - Comenius University Bratislava
O. Zenin - Inter-American Institute
D. T. Zenger - Brandeis University
H. Zeng - Chinese Academy of Sciences
C. Zeitnitz - University of Wuppertal
O. Zaplatilek - Czech Technical University in Prague
R. Zanzottera - University of Milan
J. Zang - The University of Tokyo
J. A. Zamora Saa - Universidad Andrés Bello
S. Zambito - University of Geneva
T. Zakareishvili - Universitat de València
Z. K. Zak - Institute of Nuclear Physics, Polish Academy of Sciences
A. Zaio - Istituto Nazionale di Fisica Nucleare, Sezione di Genova
I. Zahir - University of Hassan II Casablanca
B. Zabinski - Institute of Nuclear Physics, Polish Academy of Sciences
M. Zaazoua - University of Science and Technology of China
L. Yue - University College London
R. Yuan - Shanghai Jiao Tong University
M. Yuan - University of Michigan
J. Yuan - Chinese Academy of Sciences
Y. Yu - University of Science and Technology of China
N. D. Young - Institute for Fundamental Science, University of Oregon, Eugene, OR, United States
I. N.L. Young - University of Glasgow
C. Young - SLAC National Accelerator Laboratory
C. J.S. Young - SLAC National Accelerator Laboratory
K. Yorita - Waseda University
T. P. Yildirim - University of Oxford
M. R. Yexley - University College London
B. Yeo - University of California System
I. Yeletskikh - Directorate-General for International Cooperation and Development
Y. Yeh - University College London
X. Ye - University of Science and Technology of China
S. Ye - Brookhaven National Laboratory
J. Ye - Chinese Academy of Sciences
C. L. Yardley - University of Sussex
W. M. Yao - Lawrence Berkeley National Laboratory
Y. Yang - University of Science and Technology of China
Y. Yang - University of Science and Technology of China
X. Yang - Chinese Academy of Sciences
X. Yang - Chinese Academy of Sciences
T. Yang - Hong Kong University of Science and Technology
S. Yang - University of Science and Technology of China
H. T. Yang - Department of Modern Physics and State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, China
H. J. Yang - University of Science and Technology of China
Z. Yan - University of Massachusetts Amherst
S. Yan - University of Glasgow
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Yuan-Tang Chou
出版者: SPRINGER; NEW YORK
總頁數: 54
補助款備註: Ministry of Education, Culture, Sports, Science and Technology (http://data.elsevier.com/vocabulary/SciValFunders/501100001700) UK Research and Innovation (http://data.elsevier.com/vocabulary/SciValFunders/100014013) Israel Academy of Sciences and Humanities (http://data.elsevier.com/vocabulary/SciValFunders/501100003973) Marcus och Amalia Wallenbergs minnesfond (http://data.elsevier.com/vocabulary/SciValFunders/501100011898) ECA DE-AC02-76SF00515 / U.S. Department of Energy (http://data.elsevier.com/vocabulary/SciValFunders/100000015) Canarie (http://data.elsevier.com/vocabulary/SciValFunders/100008313) Irish Rugby Football Union (http://data.elsevier.com/vocabulary/SciValFunders/501100024313) RGC Natural Sciences and Engineering Research Council of Canada (http://data.elsevier.com/vocabulary/SciValFunders/501100000038) Generalitat Valenciana (http://data.elsevier.com/vocabulary/SciValFunders/501100003359)
學術資源類型: 期刊文章
出版日期: 01/05/2026
出版資訊: The European physical journal. C, Particles and fields, 卷.86(5), 頁.470
語言: 英語

Precise measurement of the tt¯ production cross-section and lepton differential distributions in eμ dilepton events from s=13TeVpp collisions with the ATLAS detector

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