Observation of (Formula presented) Production in Pb+Pb Collisions at (Formula presented) with the ATLAS Detector

G. Aad; E. Aakvaag; B. Abbott; S. Abdelhameed; K. Abeling; N. J. Abicht; S. H. Abidi; M. Aboelela; A. Aboulhorma; H. Abramowicz; Y. Abulaiti; B. S. Acharya; A. Ackermann; C. Adam Bourdarios; L. Adamczyk; S. V. Addepalli; M. J. Addison; J. Adelman; A. Adiguzel; T. Adye; A. A. Affolder; Y. Afik; M. N. Agaras; A. Aggarwal; C. Agheorghiesei; F. Ahmadov; S. Ahuja; X. Ai; G. Aielli; A. Aikot; M. Ait Tamlihat; B. Aitbenchikh; M. Akbiyik; T. P.A. Åkesson; A. V. Akimov; D. Akiyama; N. N. Akolkar; S. Aktas; K. Al Khoury; G. L. Alberghi; J. Albert; P. Albicocco; G. L. Albouy; S. Alderweireldt; Z. L. Alegria; M. Aleksa; I. N. Aleksandrov; C. Alexa; T. Alexopoulos; F. Alfonsi; M. Algren; M. Alhroob; B. Ali; H. M.J. Ali; S. Ali; S. W. Alibocus; M. Aliev; G. Alimonti; W. Alkakhi; C. Allaire; B. M.M. Allbrooke; J. S. Allen; J. F. Allen; C. A. Allendes Flores; P. P. Allport; A. Aloisio; F. Alonso; C. Alpigiani; Z. M.K. Alsolami; A. Alvarez Fernandez; M. Alves Cardoso; M. G. Alviggi; M. Aly; Y. Amaral Coutinho; A. Ambler; C. Amelung; M. Amerl; C. G. Ames; D. Amidei; B. Amini; K. Amirie; S. P. Amor Dos Santos; K. R. Amos; D. Amperiadou; S. An; V. Ananiev; C. Anastopoulos; T. Andeen; J. K. Anders; A. C. Anderson; A. Andreazza; S. Angelidakis; A. Angerami; A. V. Anisenkov; A. Annovi; C. Antel; E. Antipov; M. Antonelli; F. Anulli; M. Aoki; Yuan-Tang Chou

doi:10.1103/PhysRevLett.134.142301

Observation of (Formula presented) Production in Pb+Pb Collisions at (Formula presented) with the ATLAS Detector

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Observation of (Formula presented) Production in Pb+Pb Collisions at (Formula presented) with the ATLAS Detector

G. Aad, E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N. J. Abicht, S. H. Abidi, M. Aboelela, A. Aboulhorma, H. Abramowicz, …

Physical review letters, 卷.134(14), 142301

11/04/2025

DOI: https://doi.org/10.1103/PhysRevLett.134.142301

Web of Science ID: WOS:001505417900001

摘要

Top-quark pair production is observed in lead-lead (Pb+Pb) collisions at root s(NN)=5.02 TeV at the Large Hadron Collider with the ATLAS detector. The data sample was recorded in 2015 and 2018, amounting to an integrated luminosity of 1.9 nb(-1). Events with exactly one electron and one muon and at least two jets are selected. Top-quark pair production is measured with an observed (expected) significance of 5.0 (4.1) standard deviations. The measured top-quark pair production cross section is sigma(t (t) over bar) =3.6 (+1.0)(-0.9)(stat)(-0.5) (+0.8)(syst) mu b, with a total relative uncertainty of 31%, and is consistent with theoretical predictions using a range of different nuclear parton distribution functions. The observation of this process consolidates the evidence of the existence of all quark flavors in the preequilibrium stage of the quark-gluon plasma at very high energy densities, similar to the conditions present in the early Universe.

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題名: Observation of (Formula presented) Production in Pb+Pb Collisions at (Formula presented) with the ATLAS Detector
創作者：: G. Aad - Aix-Marseille Université
E. Aakvaag - University of Bergen
B. Abbott - University of Oklahoma
S. Abdelhameed - New York University
K. Abeling - University of Göttingen
N. J. Abicht - TU Dortmund University
S. H. Abidi - Brookhaven National Laboratory
M. Aboelela - Southern Methodist University
A. Aboulhorma - Mohammed V University
H. Abramowicz - Tel Aviv University
Y. Abulaiti - New York University
B. S. Acharya - University of Udine
A. Ackermann - Heidelberg University
C. Adam Bourdarios - Université Savoie Mont Blanc
L. Adamczyk - Jagiellonian University
S. V. Addepalli - SLAC National Accelerator Laboratory
M. J. Addison - University of Manchester
J. Adelman - Northern Illinois University
A. Adiguzel - Istanbul University
T. Adye - Rutherford Appleton Laboratory
A. A. Affolder - University of California, Santa Cruz
Y. Afik - University of Chicago
M. N. Agaras - Barcelona Institute of Science and Technology
A. Aggarwal - Johannes Gutenberg University Mainz
C. Agheorghiesei - Alexandru Ioan Cuza University
F. Ahmadov - European Organization for Nuclear Research
S. Ahuja - Royal Holloway University of London
X. Ai - Zhengzhou University
G. Aielli - University of Rome Tor Vergata
A. Aikot - Universitat de València
M. Ait Tamlihat - Faculté des sciences, Université Mohammed V, Rabat, Morocco
B. Aitbenchikh - University of Hassan II Casablanca
M. Akbiyik - Johannes Gutenberg University Mainz
T. P.A. Åkesson - Lund University
A. V. Akimov - Stony Brook University
D. Akiyama - Waseda University
N. N. Akolkar - University of Bonn
S. Aktas - Boğaziçi University
K. Al Khoury - Columbia University
G. L. Alberghi - Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
J. Albert - University of Victoria
P. Albicocco - Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
G. L. Albouy - Institut des langues et cultures d'Europe, Amérique, Afrique, Asie et Australie
S. Alderweireldt - University of Edinburgh
Z. L. Alegria - Oklahoma State University Oklahoma City
M. Aleksa - European Organization for Nuclear Research
I. N. Aleksandrov - European Organization for Nuclear Research
C. Alexa - Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering
T. Alexopoulos - National Technical University of Athens
F. Alfonsi - Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
M. Algren - University of Geneva
M. Alhroob - University of Warwick
B. Ali - Czech Technical University in Prague
H. M.J. Ali - Lancaster University
S. Ali - California State University System
S. W. Alibocus - University of Liverpool
M. Aliev - University of Johannesburg
G. Alimonti - Istituto Nazionale di Fisica Nucleare, Sezione di Milano
W. Alkakhi - University of Göttingen
C. Allaire - Université Paris-Saclay
B. M.M. Allbrooke - University of Sussex
J. S. Allen - University of Manchester
J. F. Allen - University of Manchester
C. A. Allendes Flores - Universidad Técnica Federico Santa María
P. P. Allport - University of Birmingham
A. Aloisio - Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
F. Alonso - Consejo Nacional de Investigaciones Científicas y Técnicas
C. Alpigiani - University of Washington
Z. M.K. Alsolami - Lancaster University
A. Alvarez Fernandez - Institut für Physik, Universität Mainz, Mainz, Germany
M. Alves Cardoso - Département de Physique Nucléaire
M. G. Alviggi - Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
M. Aly - University of Manchester
Y. Amaral Coutinho - Universidade Federal do Rio de Janeiro
A. Ambler - McGill University
C. Amelung - European Organization for Nuclear Research
M. Amerl - University of Manchester
C. G. Ames - Ludwig-Maximilians-Universität München
D. Amidei - University of Michigan
B. Amini - University of Freiburg
K. Amirie - University of Toronto
S. P. Amor Dos Santos - LIP - Laboratory of Instrumentation and Experimental Particle Physics
K. R. Amos - Universitat de València
D. Amperiadou - Aristotle University of Thessaloniki
S. An - High Energy Accelerator Research Organization
V. Ananiev - University of Oslo
C. Anastopoulos - University of Sheffield
T. Andeen - The University of Texas at Austin
J. K. Anders - European Organization for Nuclear Research
A. C. Anderson - University of Glasgow
A. Andreazza - University of Milan
S. Angelidakis - National and Kapodistrian University of Athens
A. Angerami - Columbia University
A. V. Anisenkov - European Organization for Nuclear Research
A. Annovi - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
C. Antel - University of Geneva
E. Antipov - Stony Brook University
M. Antonelli - Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
F. Anulli - Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
M. Aoki - High Energy Accelerator Research Organization
Yuan-Tang Chou
出版者: AMER PHYSICAL SOC; COLLEGE PK
總頁數: 22
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) Australian Education International, Australian Government (http://data.elsevier.com/vocabulary/SciValFunders/100007622) Israel Academy of Sciences and Humanities (http://data.elsevier.com/vocabulary/SciValFunders/501100003973) Helmholtz-Gemeinschaft (http://data.elsevier.com/vocabulary/SciValFunders/501100001656) 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 PRIN—20223N7F8K—PNRR M4.C2.1.1 / Ministero dell’Istruzione, dell’Università e della Ricerca (http://data.elsevier.com/vocabulary/SciValFunders/501100003407)
學術資源類型: 期刊文章
出版日期: 11/04/2025
出版資訊: Physical review letters, 卷.134(14), 142301
語言: 英語

Observation of (Formula presented) Production in Pb+Pb Collisions at (Formula presented) with the ATLAS Detector

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