Higher-order correlations between different moments of two flow amplitudes in Pb-Pb collisions at √sNN = 5.02 TeV
ALICE collaboration. (2023). Higher-order correlations between different moments of two flow amplitudes in Pb-Pb collisions at √sNN = 5.02 TeV. Physical Review C, 108(5), Article 055203. https://doi.org/10.1103/PhysRevC.108.055203
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Physical Review CAuthors
Date
2023Copyright
© 2024 CERN
The correlations between different moments of two flow amplitudes, extracted with the recently developed asymmetric cumulants, are measured in Pb-Pb collisions at root sNN = 5.02 TeV recorded by the ALICE detector at the CERN Large Hadron Collider. The magnitudes of the measured observables show a dependence on the different moments as well as on the collision centrality, indicating the presence of nonlinear 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 parametrizations 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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Publisher
American Physical SocietyISSN Search the Publication Forum
2469-9985Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/220347235
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Related funder(s)
Research Council of Finland; European CommissionFunding program(s)
Centre of Excellence, AoF; RIA Research and Innovation Action, H2020
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about funding
In addition, individual groups or members have received support from European Research Council, Strong 2020-Horizon 2020 (Grants No. 950692 and No. 824093), European Union; Academy of Finland (Center of Excellence in Quark Matter) (Grants No. 346327 and No. 346328), Finland; and Programa de Apoyos para la Superación del Personal Académico, UNAM, Mexico.License
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