Viscous hydrodynamics with bulk viscosity -- uncertainties from relaxation time and initial conditions
Nuclear Theory
2009-11-18 v2
Abstract
Bulk viscosity suppresses elliptic flow v_2, as does shear viscosity. It can thus not be neglected when extracting the shear viscosity from elliptic flow data. We here explore uncertainties in the bulk viscous contribution to viscous v_2 suppression that arise from presently uncontrolled uncertainties in the initial value of the bulk viscous pressure and its microscopic relaxation time.
Keywords
Cite
@article{arxiv.0907.2262,
title = {Viscous hydrodynamics with bulk viscosity -- uncertainties from relaxation time and initial conditions},
author = {Huichao Song and Ulrich W. Heinz},
journal= {arXiv preprint arXiv:0907.2262},
year = {2009}
}
Comments
To appear in the proceedings of Quark Matter 2009: 21th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (QM 2009), Knoxville, TN, Mar.30 - Apr.4, 2009