Beam energy dependence of the linear and mode-coupled flow harmonics in Au+Au collisions
- The linear and mode-coupled contributions to higher-order anisotropic flow are presented for Au+Au collisions at sNN−−−√ = 27, 39, 54.4, and 200 GeV and compared to similar measurements for Pb+Pb collisions at the Large Hadron Collider (LHC). The coefficients and the flow harmonics' correlations, which characterize the linear and mode-coupled response to the lower-order anisotropies, indicate a beam energy dependence consistent with an influence from the specific shear viscosity (η/s). In contrast, the dimensionless coefficients, mode-coupled response coefficients, and normalized symmetric cumulants are approximately beam-energy independent, consistent with a significant role from initial-state effects. These measurements could provide unique supplemental constraints to (i) distinguish between different initial-state models and (ii) delineate the temperature (T) and baryon chemical potential (μB) dependence of the specific shear viscosity ηs(T,μB).
URN: | urn:nbn:de:hebis:30:3-848666 |
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URL: | https://arxiv.org/abs/2211.11637v1 |
DOI: | https://doi.org/10.48550/ARXIV.2211.11637 |
ArXiv Id: | http://arxiv.org/abs/2211.11637v1 |
Parent Title (English): | arXiv |
Publisher: | arXiv |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2022/11/21 |
Date of first Publication: | 2022/11/21 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Creating Corporation: | STAR Collaboration |
Release Date: | 2024/07/09 |
Issue: | 2211.11637v1 |
Edition: | Version 1 |
Page Number: | 7 |
Institutes: | Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Licence (German): | ![]() |