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Article
Report number arXiv:2206.04574 ; CERN-EP-2022-121
Title Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN = 5.02 TeV at the LHC
Author(s) ALICE Collaboration  Prikaži svih 1053 autora
Corporate author(s) The ALICE collaboration
Publication 2023-05-24
Imprint 2022-06-09
Number of pages 19
Note 19 pages, 3 captioned figures, authors from page 14, published version, figures at http://alice-publications.web.cern.ch/node/8261
Published in: Phys. Rev. C 107 (2023) L051901
DOI 10.1103/PhysRevC.107.L051901
Subject category Nuclear Physics - Experiment ; hep-ex ; Particle Physics - Experiment ; nucl-ex
Accelerator/Facility, Experiment CERN LHC ; ALICE
Keywords relativistic heavy ion physics ; quark gluon plasma ; collective flow ; experimental results
Abstract This Letter reports on the first measurements of transverse momentum dependent flow angle Ψn and flow magnitude vn fluctuations, determined using new four-particle correlators. The measurements are performed for various centralities in Pb-Pb collisions at a centre-of-mass energy per nucleon pair of sNN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT>2 GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state of heavy-ion collisions.
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Copyright/License publication: © 2023-2024 CERN (License: CC-BY-4.0)
preprint: © 2022-2024 CERN (License: CC-BY-4.0)
Submitted by francesco.prino@cern.ch



 


 Zapis kreiran 2022-06-07, zadnja izmjena 2024-11-27


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