Measurement of the total and differential cross-sections of tt¯W\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ t\overline{t}W $$\end{document} production in pp collisions at s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s} $$\end{document} = 13 TeV with the ATLAS detector

被引：0

作者：

G. Aad ^{[23
]}

B. Abbott ^{[43
]}

K. Abeling ^{[51
]}

N. J. Abicht ^{[54
]}

S. H. Abidi ^{[55
]}

A. Aboulhorma ^{[60
]}

H. Abramowicz ^{[166
]}

H. Abreu ^{[213
]}

Y. Abulaiti ^{[267
]}

A. C. Abusleme Hoffman ^{[152
]}

B. S. Acharya ^{[171
]}

C. Adam Bourdarios ^{[83
]}

L. Adamczyk ^{[77
]}

L. Adamek ^{[46
]}

S. V. Addepalli ^{[62
]}

M. J. Addison ^{[215
]}

J. Adelman ^{[214
]}

A. Adiguzel ^{[168
]}

T. Adye ^{[194
]}

A. A. Affolder ^{[104
]}

Y. Afik ^{[105
]}

M. N. Agaras ^{[247
]}

J. Agarwala ^{[5
]}

A. Aggarwal ^{[135
]}

C. Agheorghiesei ^{[219
]}

A. Ahmad ^{[36
]}

F. Ahmadov ^{[151
]}

W. S. Ahmed ^{[165
]}

S. Ahuja ^{[29
]}

X. Ai ^{[191
]}

G. Aielli ^{[193
]}

M. Ait Tamlihat ^{[64
]}

B. Aitbenchikh ^{[14
]}

I. Aizenberg ^{[113
]}

M. Akbiyik ^{[114
]}

T. P. A. Åkesson ^{[150
]}

A. V. Akimov ^{[39
]}

D. Akiyama ^{[64
]}

N. N. Akolkar ^{[13
]}

K. Al Khoury ^{[154
]}

G. L. Alberghi ^{[145
]}

J. Albert ^{[91
]}

P. Albicocco ^{[119
]}

G. L. Albouy ^{[120
]}

S. Alderweireldt ^{[62
]}

M. Aleksa ^{[58
]}

I. N. Aleksandrov ^{[234
]}

C. Alexa ^{[150
]}

T. Alexopoulos ^{[148
]}

A. Alfonsi ^{[233
]}

机构：

[1] University of Adelaide,Department of Physics

[2] University of Alberta,Department of Physics

[3] Ankara University,Department of Physics

[4] TOBB University of Economics and Technology,Division of Physics

[5] LAPP,High Energy Physics Division

[6] Université Savoie Mont Blanc,Department of Physics

[7] CNRS/IN2P3,Department of Physics

[8] APC,Physics Department

[9] Université Paris Cité,Physics Department

[10] CNRS/IN2P3,Department of Physics

[11] Argonne National Laboratory,Institute of Physics

[12] University of Arizona,Institut de Física d’Altes Energies (IFAE)

[13] University of Texas at Arlington,Institute of High Energy Physics

[14] National and Kapodistrian University of Athens,Physics Department

[15] National Technical University of Athens,Department of Physics

[16] University of Texas at Austin,School of Science

[17] Azerbaijan Academy of Sciences,Institute of Physics

[18] Barcelona Institute of Science and Technology,Department for Physics and Technology

[19] Chinese Academy of Sciences,Physics Division

[20] Tsinghua University,Institut für Physik

[21] Nanjing University,Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics

[22] Shenzhen Campus of Sun Yat-sen University,School of Physics and Astronomy

[23] University of Chinese Academy of Science (UCAS),Department of Physics

[24] University of Belgrade,Department of Physics Engineering

[25] University of Bergen,Department of Physics

[26] Lawrence Berkeley National Laboratory,Facultad de Ciencias y Centro de Investigaciónes

[27] University of California,Departamento de Física

[28] Humboldt Universität zu Berlin,Dipartimento di Fisica e Astronomia A. Righi

[29] University of Bern,Physikalisches Institut

[30] University of Birmingham,Department of Physics

[31] Bogazici University,Department of Physics

[32] Gaziantep University,Department of Physics

[33] Istanbul University,Faculty of Physics

[34] Universidad Antonio Nariño,Faculty of Mathematics, Physics and Informatics

[35] Universidad Nacional de Colombia,Physics Department

[36] Università di Bologna,Cavendish Laboratory

[37] INFN Sezione di Bologna,Department of Physics

[38] Universität Bonn,Department of Mechanical Engineering Science

[39] Boston University,National Institute of Physics

[40] Brandeis University,School of Physics

[41] Transilvania University of Brasov,Department of Physics

[42] Horia Hulubei National Institute of Physics and Nuclear Engineering,Faculté des Sciences

[43] Alexandru Ioan Cuza University of Iasi,LPMR, Faculté des Sciences

[44] National Institute for Research and Development of Isotopic and Molecular Technologies,Faculté des sciences

[45] Physics Department,Institute of Applied Physics

[46] National University of Science and Technology Politechnica,Enrico Fermi Institute

[47] West University in Timisoara,Nevis Laboratory

[48] University of Bucharest,Niels Bohr Institute

[49] Comenius University,Dipartimento di Fisica

[50] Department of Subnuclear Physics,Physics Department

来源：

Journal of High Energy Physics | / 2024卷 / 5期

关键词：

Hadron-Hadron Scattering; Top Physics;

D O I：

10.1007/JHEP05(2024)131

中图分类号：

学科分类号：

摘要：

Measurements of inclusive and differential production cross-sections of a top-quark-top-antiquark pair in association with a W boson (tt¯W\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ t\overline{t}W $$\end{document}) are presented. They are performed by targeting final states with two same-sign or three isolated leptons (electrons or muons) and are based on s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s} $$\end{document} = 13 TeV proton-proton collision data with an integrated luminosity of 140 fb−1, recorded from 2015 to 2018 with the ATLAS detector at the Large Hadron Collider. The inclusive tt¯W\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ t\overline{t}W $$\end{document} production cross-section is measured to be 880 ± 80 fb, compared to a reference theoretical prediction of 745 ± 50 (scale) ± 13 (2-loop approx.) ± 19 (PDF, αs) fb. Differential cross-section measurements characterise this process in detail for the first time. Several particle-level observables are compared with a variety of theoretical predictions, which generally agree well with the normalised differential cross-section results. Additionally, the relative charge asymmetry of tt¯W+\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ t\overline{t}{W}^{+} $$\end{document} and tt¯W−\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ t\overline{t}{W}^{-} $$\end{document} is measured inclusively to be ACrel\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {A}_{\textrm{C}}^{\textrm{rel}} $$\end{document} = 0.33 ± 0.05, in very good agreement with the theoretical prediction of 0.322 ± 0.003 (scale) ± 0.007 (PDF), as well as differentially.

引用

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