Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions 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; 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; 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; T. Amezza; D. Amidei; B. Amini; K. Amirie; A. Amirkhanov; S. P. Amor Dos Santos; K. R. Amos; D. Amperiadou; S. An; 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; T. Aoki; ATLAS Collaboration; Yuan-Tang Chou

doi:10.1103/ldcn-r2lq

Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions with the ATLAS Detector

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Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions 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.136(3), 頁.032301

23/01/2026

DOI: https://doi.org/10.1103/ldcn-r2lq

PMID: 41651474

Web of Science ID: WOS:001691078900001

摘要

<p>Anisotropic flow and radial flow are two key probes of the expansion dynamics and properties of the quark-gluon plasma (QGP). While anisotropic flow has been extensively studied, radial flow, which governs the system's radial expansion, has received less attention. Notably, direct experimental evidence for the global and collective nature of radial flow fluctuations has been lacking. This Letter presents the first measurement of transverse momentum (pT) dependence of radial flow fluctuations (v(0)(p(T)) over 0.5 < p(T) < 10 GeV and demonstrates its collective nature using a two-particle correlation method in Pb thorn Pb collisions at root s(NN) = 5.02 TeV. The data reveal three key features supporting the collective nature of radial flow: long-range correlation in pseudorapidity, factorization in p(T), and centrality-independent shape in p(T). The comparison with a hydrodynamic model demonstrates the sensitivity of v(0)(p(T)) to bulk viscosity, a crucial transport property of the QGP. These findings establish a new, powerful tool for probing collective dynamics and properties of the QGP.</p>

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題名: Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions 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 - Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
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 - King's College London
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 - Fysiska Institutionen, Lunds Universitet, Lund, Sweden
A. V. Akimov - Stony Brook University
D. Akiyama - Waseda University
N. N. Akolkar - Physikalisches Institut, Universität Bonn, Bonn, Germany
S. Aktas - Boğaziçi 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 - Université Grenoble Alpes
S. Alderweireldt - University of Edinburgh
Z. L. Alegria - Oklahoma State University
M. Aleksa - European Organization for Nuclear Research
I. N. Aleksandrov - Affiliated with an International Laboratory Covered by a Cooperation Agreement with CERN, Switzerland
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 - Ibn Saud Islamic University, Saudi Arabia
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 Edinburgh
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 - Physics Department, Lancaster University, Lancaster, United Kingdom
A. Alvarez Fernandez - Institut für Physik, Universität Mainz, Mainz, Germany
M. Alves Cardoso - Département de Physique Nucléaire
M. G. Alviggi - Dipartimento di Fisica, Università di Napoli, Napoli, Italy
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
T. Amezza - Sorbonne Université
D. Amidei - University of Michigan
B. Amini - University of Freiburg
K. Amirie - University of Toronto
A. Amirkhanov - European Organization for Nuclear Research
S. P. Amor Dos Santos - Laboratório de Instrumentação e Física Experimental de Partículas—LIP, Lisboa, Portugal
K. R. Amos - Instituto de Física Corpuscular
D. Amperiadou - Aristotle University of Thessaloniki
S. An - High Energy Accelerator Research Organization
C. Anastopoulos - University of Sheffield
T. Andeen - The University of Texas at Austin
J. K. Anders - University of Liverpool
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 - Affiliated with an International Laboratory Covered by a Cooperation Agreement with CERN, Switzerland
A. Annovi - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
C. Antel - European Organization for Nuclear Research
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
T. Aoki - The University of Tokyo
ATLAS Collaboration
Yuan-Tang Chou
出版者: AMER PHYSICAL SOC; COLLEGE PK
總頁數: 24
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) EHPC-DEV-2024D11-051 / Horizon 2020 (http://data.elsevier.com/vocabulary/SciValFunders/501100007601) VR 2023-03403; VR 2022-03845; VR 2024-05451; VR 2021-03651; VR 2022-04683; 2023-04654 / Vetenskapsrådet (http://data.elsevier.com/vocabulary/SciValFunders/501100004359) JP22KK0227; JP22H04944; JP22H01227; JP23KK0245; JP24K23939 / Japan Society for the Promotion of Science (http://data.elsevier.com/vocabulary/SciValFunders/501100001691) 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)
學術資源類型: 期刊文章
出版日期: 23/01/2026
出版資訊: Physical review letters, 卷.136(3), 頁.032301
語言: 英語

Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions with the ATLAS Detector

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