We introduce a transport approach at fixed shear viscosity to entropy ratio eta/s to study the generation of collective flows in ultra-relativistic heavy-ion collisions. Transport theory supplies a covariant approach valid also at large eta/s and at intermediate transverse momentum PT, where deviations from equilibrium is no longer negligible. Such an approach shows that at RHIC energies a temperature dependent ids enhances significantly the v(4)/v(2)(2) respect to the case of constant eta/s. Furthermore if NJL chiral dynamics is self-consistently implemented we show that it does not modify the relation between v(2) and eta/s.

Collective Flows in a Transport Approach

PLUMARI, SALVATORE;Greco V.
2011

Abstract

We introduce a transport approach at fixed shear viscosity to entropy ratio eta/s to study the generation of collective flows in ultra-relativistic heavy-ion collisions. Transport theory supplies a covariant approach valid also at large eta/s and at intermediate transverse momentum PT, where deviations from equilibrium is no longer negligible. Such an approach shows that at RHIC energies a temperature dependent ids enhances significantly the v(4)/v(2)(2) respect to the case of constant eta/s. Furthermore if NJL chiral dynamics is self-consistently implemented we show that it does not modify the relation between v(2) and eta/s.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/252013
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