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Article
Report number arXiv:2303.13414 ; CERN-EP-2023-047
Title Higher-order correlations between different moments of two flow amplitudes in PbPb collisions at sNN=5.02 TeV
Author(s) ALICE Collaboration  Mostrar todos os 1048 autores
Corporate author(s) The ALICE collaboration
Publication 2023-11-14
Imprint 16 Mar 2023
Number of pages 21
Note 27 pages, 9 captioned figures, authors from page 22, published version, figures at http://alice-publications.web.cern.ch/node/9210
Published in: Phys. Rev. C 108 (2023) 055203
DOI 10.1103/PhysRevC.108.055203
Subject category Nuclear Physics - Experiment ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Keywords relativistic heavy ion physics ; quark gluon plasma ; particle correlations and fluctuations ; collective flow ; experimental results
Abstract The correlations between different moments of two flow amplitudes, extracted with the recently developed asymmetric cumulants, are measured in PbPb collisions at sNN=5.02 TeV recorded by the ALICE detector at the LHC. The magnitudes of the measured observables show a dependence on the different moments as well as on the collision centrality, indicating the presence of non-linear response in all even moments up to the eighth. Furthermore, the higher-order asymmetric cumulants show different signatures than the symmetric and lower-order asymmetric cumulants. Comparisons with state-of-the-art event generators using two different parameterizations obtained from Bayesian optimization show differences between data and simulations in many of the studied observables, indicating a need for further tuning of the models behind those event generators. These results provide new and independent constraints on the initial conditions and transport properties of the system created in heavy-ion collisions.
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Copyright/License Preprint: © 2023-2024 CERN (License: CC-BY-4.0)
Publication: © 2023-2024 CERN (License: CC-BY-4.0)
Submitted by javier.castillo.castellanos@cern.ch



 


 Record created 2023-03-16, last modified 2024-11-27


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