Systematic study of flow vector fluctuations in $$\sqrt{S_{NN}}$$ = 5.02 TeV Pb-Pb collisions
- Université Clermont Auvergne
- Nuclear Physics Institute of the Czech Academy of Sciences
- Variable Energy Cyclotron Centre
- European Organization for Nuclear Research (CERN)
- Dipartimento di Fisica dell'Università
- Dipartimento DISAT del Politecnico
- Dipartimento di Fisica e Astronomia dell'Università
- Aligarh Muslim University
- Korea Institute of Science and Technology Information
- P.J. Šafárik University
- CERN
- Johann Wolfgang Goethe-Universität Frankfurt
- GSI Helmholtzzentrum für Schwerionenforschung
- INFN, Sezione di Torino
- Central China Normal University
- Universidad Nacional Autónoma de México
- University of Houston
- Sungkyunkwan University
- University of Bergen
- INFN, Sezione di Cagliari
- INFN, Sezione di Bari
- Physik Department
- Universidad Autónoma de Puebla
- Horia Hulubei National Institute of Physics and Nuclear Engineering
- University of Derby
- Universität Münster
- Ruprecht-Karls-Universität Heidelberg
- INFN, Sezione di Padova
- INFN, Sezione di Bologna
- Lawrence Berkeley National Laboratory
- IMT Atlantique
- Laboratoire de Physique Subatomique et de Cosmologie
- Universidade de São Paulo (USP)
- University of Oslo
- Yale University
- University of Tokyo
- INFN, Sezione di Catania
- Gangneung-Wonju National University
- University of Science and Technology of China
- Indian Institute of Technology Indore
- University of Jammu
- Université Paris-Saclay
- AGH University of Krakow
- Bose Institute
- Dipartimento Interateneo di Fisica ‘M. Merlin’
- National and Kapodistrian University of Athens
- Gauhati University
- HUN-REN Wigner Research Centre for Physics
- University of Liverpool
- Lund University
- Indian Institute of Technology Bombay (IIT)
- Pontificia Universidad Católica del Perú
- University of Copenhagen
- Université de Strasbourg
- Universidad Autónoma de Sinaloa
- Institute of Space Science (ISS)
- Laboratori Nazionali di Frascati
- Czech Technical University in Prague
- The University of Texas at Austin
- Università di Pavia; INFN, Sezione di Pavia
- Oak Ridge National Laboratory
- Pusan National University
- Università di Brescia; INFN, Sezione di Pavia
- Politecnico di Bari and Sezione INFN; Dipartimento Interateneo di Fisica ‘M. Merlin’
- Stefan Meyer Institut für Subatomare Physik (SMI)
- iThemba LABS; University of the Witwatersrand
- The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
- Dipartimento di Fisica ‘E.R. Caianiello’ dell'Università
- Universitatea Nationala de Stiinta si Tehnologie Politehnica Bucuresti
- Institut de Physique des 2 Infinis de Lyon
- Warsaw University of Technology; Indian Institute of Technology Bombay (IIT)
- Saha Institute of Nuclear Physics
- GSI Helmholtzzentrum für Schwerionenforschung; Central China Normal University
- Universidade Estadual de Campinas (UNICAMP)
- Inha University
- Warsaw University of Technology
- National Institute for Subatomic Physics
- University of Tsukuba
- University of Birmingham
- IMT Atlantique; Université Paris-Saclay
- Università del Piemonte Orientale; INFN, Sezione di Torino
- Universidade Federal do ABC
- National Institute of Science Education and Research
- Università di Brescia
- University of California, Berkeley
- CERN; Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN)
- University of Cape Town
- Panjab University
- Comenius University Bratislava
- Hiroshima University
- iThemba LABS
- INFN, Sezione di Trieste
- Saga University
- Chicago State University
- University of Kansas
- Universidade Federal do Rio Grande do Sul (UFRGS)
- GSI Helmholtzzentrum für Schwerionenforschung; INFN, Sezione di Torino
- University of Tennessee, Knoxville
- Nagasaki Institute of Applied Science
- Wayne State University
- Faculty of Electrical Engineering
- Utrecht University
- CERN; A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation
- Yonsei University
- University of Jyväskylä
- Rheinische Friedrich-Wilhelms-Universität Bonn
- Western Norway University of Applied Sciences
- Centro de Investigación y de Estudios Avanzados (CINVESTAV)
- Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik
- Ohio State University
- University of California, Berkeley; Lawrence Berkeley National Laboratory
- Technical University of Košice
- National Research and Innovation Agency - BRIN
- China Institute of Atomic Energy
- European Organization for Nuclear Research (CERN); GSI Helmholtzzentrum für Schwerionenforschung
- Suranaree University of Technology
- Institute of Experimental Physics
- KTO Karatay University
- University of Zagreb
- European Organization for Nuclear Research (CERN); Warsaw University of Technology
- Zentrum für Technologie und Transfer (ZTT), Worms
- Jeonbuk National University
- Sejong University
- Sofia University
- California Polytechnic State University
- European Organization for Nuclear Research (CERN); Johann Wolfgang Goethe-Universität Frankfurt
- University of Birmingham; Institute of Experimental Physics
- National Centre for Nuclear Research
- University of South-Eastern Norway
- European Organization for Nuclear Research (CERN); Physik Department
- Daresbury Laboratory
- Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN)
- GSI Helmholtzzentrum für Schwerionenforschung; University of Science and Technology of China
- Fudan University
- Università di Messina; INFN, Sezione di Catania
- Università degli Studi di Foggia; INFN, Sezione di Bari
- University of the Witwatersrand
- Helsinki Institute of Physics (HIP)
- European Organization for Nuclear Research (CERN); Ruprecht-Karls-Universität Heidelberg
- CERN; CERN
- Chungbuk National University
- China University of Geosciences
- INFN, Sezione di Bologna; European Organization for Nuclear Research (CERN)
- Creighton University
- Oak Ridge National Laboratory; University of Tennessee, Knoxville
- National Nuclear Research Center
- Homi Bhabha National Institute
- Physikalisches Institut
- Nara Women's University (NWU)
- GSI Helmholtzzentrum für Schwerionenforschung; Indian Institute of Technology Indore
- European Organization for Nuclear Research (CERN); Universität Münster
- European Organization for Nuclear Research (CERN); Università di Messina; INFN, Sezione di Catania
- Bogolyubov Institute for Theoretical Physics
- INFN, Sezione di Pavia
- Institute of Physics of the Czech Academy of Sciences
- INFN, Sezione di Padova; Central China Normal University
Measurements of the 𝑝T-dependent flow vector fluctuations in Pb–Pb collisions at $$\sqrt{S_{NN}}$$ = 5.02 TeV using azimuthal correlations with the ALICE experiment at the Large Hadron Collider are presented. A four-particle correlation approach [ALICE Collaboration, Phys. Rev. C 107, L051901 (2023)] is used to quantify the effects of flow angle and magnitude fluctuations separately. This paper extends previous studies to additional centrality intervals and provides measurements of the 𝑝T-dependent flow vector fluctuations at $$\sqrt{S_{NN}}$$ = 5.02 TeV with two-particle correlations. Significant 𝑝T-dependent fluctuations of the $$\vec{𝑉}$$2 flow vector in Pb–Pb collisions are found across different centrality ranges, with the largest fluctuations of up to ∼15% being present in the 5% most central collisions. In parallel, no evidence of significant 𝑝T-dependent fluctuations of $$\vec{𝑉}$$3 or $$\vec{𝑉}$$4 is found. Additionally, evidence of flow angle and magnitude fluctuations is observed with more than 5𝜎 significance in central collisions. These observations in Pb–Pb collisions indicate where the classical picture of hydrodynamic modeling with a common symmetry plane breaks down. This has implications for hard probes at high 𝑝T, which might be biased by 𝑝T-dependent flow angle fluctuations of at least 23% in central collisions. Given the presented results, existing theoretical models should be reexamined to improve our understanding of initial conditions, quark–gluon plasma properties, and the dynamic evolution of the created system.
- Research Organization:
- Chicago Office, Argonne, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Wayne State University, Detroit, MI (United States)
- Sponsoring Organization:
- Österreichischen Akademie der Wissenschaften; Academy of Finland; Austrian Science Fund; Bundesministerium für Bildung und Forschung; Centre National de la Recherche Scientifique; Consejo Nacional de Ciencia y Tecnología; Conselho Nacional de Desenvolvimento Científico e Tecnológico; Danmarks Frie Forskningsfond; Danmarks Grundforskningsfond; Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México; Financiadora de Estudos e Projetos; Fondo de Cooperación Internacional en Ciencia y Tecnología; Fundação de Amparo à Pesquisa do Estado de São Paulo; Grantová Agentura České Republiky; Japan Society for the Promotion of Science; Ministry of Education, Culture, Sports, Science and Technology; National Natural Science Foundation of China; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; USDOE; USDOE Office of Science (SC), Nuclear Physics (NP); Universidade Federal do Rio Grande do Sul
- Contributing Organization:
- ALICE Collaboration
- Grant/Contract Number:
- AC05-00OR22725; FG02-92ER40713; FG02-96ER40982
- OSTI ID:
- 3004751
- Journal Information:
- Physical Review. C, Journal Name: Physical Review. C Journal Issue: 6 Vol. 109; ISSN 2469-9985; ISSN 2469-9993
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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