Estimating $\eta/s$ of QCD matter at high baryon densities

Iu. Karpenko; M. Bleicher; P. Huovinen; H. Petersen

doi:10.1088/1742-6596/668/1/012063

Estimating $\eta/s$ of QCD matter at high baryon densities

Nuclear Theory 2016-02-17 v1 High Energy Physics - Phenomenology

Authors: Iu. Karpenko , M. Bleicher , P. Huovinen , H. Petersen

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Abstract

We report on the application of a cascade + viscous hydro + cascade model for heavy ion collisions in the RHIC Beam Energy Scan range, $\sqrt{s_{\rm NN}}=6.3\dots200$ GeV. By constraining model parameters to reproduce the data we find that the effective(average) value of the shear viscosity over entropy density ratio $\eta/s$ decreases from 0.2 to 0.08 when collision energy grows from $\sqrt{s_{\rm NN}}\approx7$ to 39 GeV.

Keywords

QCD matter shear viscosity entropy density heavy ion collision beam energy scan cascade-hydrodynamics model high baryon density

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@article{arxiv.1509.07351,
  title  = {Estimating $\eta/s$ of QCD matter at high baryon densities},
  author = {Iu. Karpenko and M. Bleicher and P. Huovinen and H. Petersen},
  journal= {arXiv preprint arXiv:1509.07351},
  year   = {2016}
}

Comments

4 pages, proceedings of the Strangeness in Quark Matter 2015, Dubna, July 6-11, 2015

Estimating $\eta/s$ of QCD matter at high baryon densities

Abstract

Keywords

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