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HK: Fachverband Physik der Hadronen und Kerne
HK 54: Heavy Ion Collisions and QCD Phases 7
HK 54.3: Talk
Thursday, March 26, 2015, 15:15–15:30, T/SR14
Local thermalization in a coarse-grained transport approach — •Dmytro Oliinychenko1,3 and Hannah Petersen1,2 — 1Frankfurt Institute for Advanced Studies, D-60438 Frankfurt am Main, Germany — 2Institut für Theoretische Physik, Goethe-Universität, D-60438 Frankfurt am Main, Germany — 3Bogolyubov Institute for Theoretical Physics, Kiev 03680, Ukraine
State of the art simulations of heavy ion collisions employ so-called hybrid models, which involve relativistic (possibly viscous) hydrodynamics coupled to a transport model. Switching between these two approaches should be done in the region, where the system is approaching thermodynamical equilibrium. In practice, when the initial state of hydrodynamics is generated from transport, pressure anisotropies can be present and non-diagonal components of energy-momentum tensor can be significant. In this talk, the energy-momentum tensor is explored in a coarse-grained transport and the hypersurface is found, where local equilibrium is reached.