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arXiv · 0709.0742

Suppression of elliptic flow in a minimally viscous quark-gluon plasma

Huichao Song·Ulrich W. Heinz
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Abstract

We compute the time evolution of elliptic flow in non-central relativistic heavy-ion collisions, using a (2+1)-dimensional code with longitudinal boost-invariance to simulate viscous fluid dynamics in the causal Israel-Stewart formulation. We show that even ``minimal'' shear viscosity eta/s=hbar/(4pi) leads to a large reduction of elliptic flow compared to ideal fluid dynamics, raising questions about the interpretation of recent experimental data from the Relativistic Heavy Ion Collider.

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Huichao Song, Ulrich W. Heinz. 2007-12-21. Suppression of elliptic flow in a minimally viscous quark-gluon plasma. https://doi.org/10.1016/j.physletb.2007.11.019

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