Dresden 2013 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 74: Schwerionenkollisionen und QCD Phasen

HK 74.1: Gruppenbericht

Donnerstag, 7. März 2013, 16:45–17:15, HSZ-201

Thermalization through Hagedorn-States — •Maxim Beitel, Kai Gallmeister, and Carsten Greiner — Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany

We examine the evolution of a heavy ion collision starting from non-equilibrium to an equilibrium state by looking at the corresponding thermalization times. Therefore we use the hadronic transport model "UrQMD" as microscopic model for high-energetic heavy ion collisions. Unfortunately these times are too long at present because detailed balance is not realized for all collisions which may occur. In order to get rid of this drawback we deploy Hagedorn-States proposed by the "Statistical Bootstrap Model". We study the question, whether creation of these states in binary collisions and their decay into two particles only will lower the thermalization times in UrQMD.
Supported by the Hessian LOEWE initiative through the Helmholtz International Center for FAIR (HIC for FAIR), GSI and HGS-HIRe.