Collective Flows in a Transport Approach

Details Collective Flows in a Transport Approach Collective Flows in a Transport Approach

2010-09-14

arxiv.org/abs/1009.2664v1

J. Phys.: Conf. Ser. 270 (2011) 012061

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures, Proceedings of Hot Quarks 2010, 21-26 June 2010 Las Londe Les Maures; to appear in Journal of Physics: Con

Scientific paper

10.1088/1742-6596/270/1/012061

We introduce a transport approach at fixed shear viscosity to entropy ratio $\etas$ to study the generation of collective flows in ultra-relativistic heavy-ion collisions. Transport theory supplies a covariant approach valid also at large $\etas$ and at intermediate transverse momentum $p_T$, where deviations from equilibrium is no longer negligible. Such an approach shows that at RHIC energies a temperature dependent $\etas$ enhances significantly the $v_4/v_2^2$ respect to the case of constant $\etas$. Furthermore if NJL chiral dynamics is self-consistently implemented we show that it does not modify the relation between $v_2$ and $\etas$.

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