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arXiv · 0907.2262

Viscous hydrodynamics with bulk viscosity -- uncertainties from relaxation time and initial conditions

Huichao Song·Ulrich W. Heinz
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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.

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Huichao Song, Ulrich W. Heinz. 2009-09-22. Viscous hydrodynamics with bulk viscosity -- uncertainties from relaxation time and initial conditions. https://doi.org/10.1016/j.nuclphysa.2009.10.041

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