Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions with the ATLAS Detector
- Aix-Marseille Université
- University of Bergen
- University of Oklahoma
- New York University Abu Dhabi
- Georg-August-Universität Göttingen
- Technische Universität Dortmund
- Brookhaven National Laboratory
- Southern Methodist University
- Université Mohammed V
- Tel Aviv University
- New York University
- INFN Gruppo Collegato di Udine; ICTP
- Ruprecht-Karls-Universität Heidelberg
- Université Savoie Mont Blanc
- AGH University of Krakow
- SLAC National Accelerator Laboratory
- University of Manchester
- Northern Illinois University
- Istanbul University
- Rutherford Appleton Laboratory
- University of California Santa Cruz
- University of Chicago
- Barcelona Institute of Science and Technology
- Universität Mainz
- Alexandru Ioan Cuza University of Iasi
- CERN
- Royal Holloway University of London
- Zhengzhou University
- INFN Sezione di Roma Tor Vergata; Università di Roma Tor Vergata
- Centro Mixto Universidad de Valencia—CSIC
- Université Hassan II de Casablanca
- Lunds universitet
- Stony Brook University
- Waseda University
- Universität Bonn
- Bogazici University
- INFN Sezione di Bologna
- University of Victoria
- INFN e Laboratori Nazionali di Frascati
- Université Grenoble Alpes
- University of Edinburgh
- Oklahoma State University
- CERN, Geneva, Switzerland
- Horia Hulubei National Institute of Physics and Nuclear Engineering
- National Technical University of Athens
- Université de Genève
- University of Warwick
- Czech Technical University in Prague
- Lancaster University
- California State University
- University of Liverpool
- University of Johannesburg
- INFN Sezione di Milano
- Université Paris-Saclay
- University of Sussex
- University of Birmingham
- INFN Sezione di Napoli; Università di Napoli
- Universidad Nacional de La Plata and CONICET
- University of Washington
- Universidade Federal do Rio De Janeiro COPPE/EE/IF
- McGill University
- Ludwig-Maximilians-Universität München
- Sorbonne Université
- University of Michigan
- Albert-Ludwigs-Universität Freiburg
- University of Toronto
- Laboratório de Instrumentação e Física Experimental de Partículas—LIP
- Aristotle University of Thessaloniki
- High Energy Accelerator Research Organization
- University of Sheffield
- University of Texas at Austin
- University of Glasgow
- INFN Sezione di Milano; Università di Milano
- National and Kapodistrian University of Athens
- Columbia University
- INFN Sezione di Pisa
- INFN Sezione di Roma
- University of Tokyo
- Deutsches Elektronen-Synchrotron DESY
- Universidad de Buenos Aires
- Brandeis University
- Institute of Nuclear Physics Polish Academy of Sciences
- Duke University
- University of Montreal
- INFN Sezione di Roma; Sapienza Università di Roma
- Nagoya University
- Ochanomizu University
- Yerevan Physics Institute
- Comenius University
- University of California Irvine
- University of Cape Town
- Mohammed VI Polytechnic University
- University of Pennsylvania
- Université Clermont Auvergne
- Institute of Experimental Physics of the Slovak Academy of Sciences
- Carleton University
- Technische Universität Dresden
- Humboldt Universität zu Berlin
- University of Oregon
- Queen Mary University of London
- Yale University
- University of Belgrade
- University of Texas at Arlington
- INFN Sezione di Bologna; Università di Bologna
- University of Cambridge
- United Arab Emirates University
- University of Pittsburgh
- University of Melbourne
- University of California
- Nikhef National Institute for Subatomic Physics and University of Amsterdam
- Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)
- Charles University
- University of Science and Technology of China
- Oxford University
- University College London
- Universidad Autónoma de Madrid
- Chinese Academy of Sciences
- TRIUMF
- University of British Columbia
- Universität Innsbruck
- Tufts University
- University of Bern
- Istinye University
- Rio de Janeiro State University
- Indiana University
- Harvard University
- University of Uppsala
- Lawrence Berkeley National Laboratory
- Université Paris Cité
- INFN Sezione di Roma Tre
- Bergische Universität Wuppertal
- Gaziantep University
- Weizmann Institute of Science
- Universität Siegen
- INFN Sezione di Genova; Università di Genova
- Julius-Maximilians-Universität Würzburg
- Ohio State University
- University of Massachusetts
- INFN-TIFPA; Università degli Studi di Trento
- Michigan State University
- York University
- University of Victoria; TRIUMF
- Stockholm University; Oskar Klein Centre
- Université de Toulouse
- University of Illinois
- Simon Fraser University
- Boston University
- Justus-Liebig-Universität Giessen
- INFN Sezione di Bologna; University of Chinese Academy of Science (UCAS); Università di Bologna
- Nanjing University
- Ankara University
- University of Copenhagen
- Laboratori Nazionali di Frascati; Università della Calabria
- INFN Sezione di Roma Tor Vergata
- INFN Sezione di Napoli
- Institute for Mathematics
- Universidad Técnica Federico Santa María
- INFN Sezione di Pavia; Università di Pavia
- Laboratório de Instrumentação e Física Experimental de Partículas—LIP; Universidade do Minho
- University of Oslo
- Universidad Nacional de Colombia
- Palacký University
- Universidade Federal de Juiz de Fora (UFJF)
- INFN Sezione di Pisa; Università di Pisa
- Tbilisi State University
- Argonne National Laboratory
- Shanghai Jiao Tong University
- Kyoto University
- Tsinghua University
- University of Wisconsin
- Chinese University of Hong Kong
- University of Arizona
- National Tsing Hua University
- INFN Sezione di Lecce
- Chinese Academy of Sciences; University of Chinese Academy of Science (UCAS)
- Institute of Physics of the Czech Academy of Sciences
- University of Ljubljana
- INFN Gruppo Collegato di Udine; Università di Udine
- INFN Sezione di Genova
- INFN Sezione di Lecce; Università del Salento
- Laboratório de Instrumentação e Física Experimental de Partículas—LIP; Universidade de Lisboa
- Institute of Physics
- University of Adelaide
- INFN Sezione di Roma Tre; Università Roma Tre
- Pontificia Universidad Católica de Chile; Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
- Royal Institute of Technology
- University of Manchester; Lunds universitet
- University of Bucharest
- Federal University of Bahia
- Université Ibn-Tofail
- University of Hong Kong
- Louisiana Tech University
- Rutherford Appleton Laboratory; University of Edinburgh
- Shandong University
- Centro Nacional de Microelectrónica (IMB-CNM-CSIC)
- Nikhef National Institute for Subatomic Physics and University of Amsterdam; Institute for Mathematics
- INFN Sezione di Pavia
- Laboratório de Instrumentação e Física Experimental de Partículas—LIP; Universidade de Coimbra
- University of the Philippines Diliman
- University of Sharjah
- University of New Mexico
- National Centre for Scientific Research “Demokritos
- Jagiellonian University
- University of Alberta
- Laboratori Nazionali di Frascati
- University of Georgia
- West University in Timisoara
- Shenzhen Campus of Sun Yat-sen University
- Royal Holloway University of London; Rutherford Appleton Laboratory
- Shinshu University
- University of Osaka
- University of Tsukuba
- National University of Science and Technology Politechnica
- Azerbaijan Academy of Sciences
- Universidad de La Serena
- Iv. Javakhishvili Tbilisi State University
- Institute of Science
- Georg-August-Universität Göttingen; CERN, Geneva, Switzerland
- Universidad de Tarapacá
- Technion, Israel Institute of Technology
- University of the Witwatersrand
- Iowa State University
- Universidad Andres Bello; Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
- Kobe University
- Universidade de São Paulo
- Shanghai Jiao Tong University; Shanghai Jiao Tong University
- Hong Kong University of Science and Technology
- Shanghai Jiao Tong University; University of Washington; Shanghai Jiao Tong University
- Shenzhen Campus of Sun Yat-sen University; University of Chinese Academy of Science (UCAS)
- Laboratório de Instrumentação e Física Experimental de Partículas—LIP; Universidade de Lisboa; Centro de Física Nuclear da Universidade de Lisboa
- University of Iowa
- Kyushu University
- Université Mohamed Premier
- University of Warwick; Rutherford Appleton Laboratory
- Universidad Antonio Nariño
- iThemba Labs
- University of Sydney
- Transilvania University of Brasov
- National Institute for Research and Development of Isotopic and Molecular Technologies
- Deutsches Elektronen-Synchrotron DESY; University of Chinese Academy of Science (UCAS)
- University of Uppsala; Georg-August-Universität Göttingen
- Laboratório de Instrumentação e Física Experimental de Partículas—LIP; Centro de Física Nuclear da Universidade de Lisboa
- Université Paris-Saclay; Southern Methodist University
- University of the Witwatersrand; University of West Attica
- Stockholm University
- Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
- Universidad de La Serena; Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
- Khalifa University of Science and Technology
- Simon Fraser University; TRIUMF
- TOBB University of Economics and Technology
- High Energy Accelerator Research Organization; Nagoya University
- Pontificia Universidad Católica de Chile
- Tokyo Metropolitan University
- Universidad Andres Bello
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 (𝑣0(𝑝T)) over 0.5 < 𝑝T < 10 GeV and demonstrates its collective nature using a two-particle correlation method in Pb+Pb collisions at $$\sqrt{𝑠_{NN}}$$ = 5.02 TeV. The data reveal three key features supporting the collective nature of radial flow: long-range correlation in pseudorapidity, factorization in 𝑝T, and centrality-independent shape in 𝑝T. The comparison with a hydrodynamic model demonstrates the sensitivity of 𝑣0(𝑝T) 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.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); State Univ. of New York (SUNY), Stony Brook, NY (United States); Stony Brook University, NY (United States); Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Organization:
- ATLAS Collaboration
- Grant/Contract Number:
- AC02-76SF00515; FG02-03ER41244; SC0024602
- OSTI ID:
- 3014456
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 136; ISSN 1079-7114; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evidence for Similar Collectivity of High Transverse-Momentum Particles in 𝑝-Pb and Pb-Pb Collisions
Azimuthal anisotropies of charged particles with high transverse momentum in Pb + Pb collisions at $\sqrt{s_{\textrm{NN}}}$ = 5.02 TeV with the ATLAS detector