Viscous Damping of Anisotropic Flow in 7.7 − 200 GeV Au+Au Collisions

Recent STAR measurements of the anisotropic flow coefficients vn (2 ≤ n ≤ 5) in Au+Au collisions at RHIC, are presented for the full span of energies (7.7 − 200 GeV) employed in beam energy scan I (BES-I). The measurements which can provide strong constraints for the baryon chemical potential (µB) a...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2017-01, Vol.779 (1), p.12060
Main Author: Magdy, Niseem
Format: Article
Language:English
Subjects:
Beams (radiation)
Chemical potential
Collisions
Flow coefficients
Physics
Relativistic Heavy Ion Collider
Shear viscosity
Temperature dependence
Viscous damping
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Recent STAR measurements of the anisotropic flow coefficients vn (2 ≤ n ≤ 5) in Au+Au collisions at RHIC, are presented for the full span of energies (7.7 − 200 GeV) employed in beam energy scan I (BES-I). The measurements which can provide strong constraints for the baryon chemical potential (µB) and temperature (T ) dependence of the specific shear viscosity η/s, indicate sizable dependencies on harmonic number n, pT and centrality, with similar patterns [but different magnitudes] across the beam energies studied. An excitation function for the viscous coefficient, extracted via specific ratios of vn for a fixed centrality, indicates a non-monotonic pattern which could be related to the onset of critical reaction dynamics in the BES-I energy range.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/779/1/012060