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Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 44: Heavy Ion Collisions and QCD Phases 5

HK 44.6: Talk

Wednesday, March 25, 2015, 16:00–16:15, T/HS1

Thermalization of hadrons through Hagedorn states — •Maxim Beitel, Kai Gallmeister, and Carsten Greiner — Institut für Theoretische Physik Johann Wolfgang Goethe-Universität Max-von-Laue-Str. 1 60438 Frankfurt am Main, Germany

One of the most intriguing questions in high energy collisions is how hadrons produced in a non-equilibrium system achieve thermal equilibrations on such short time scales. To simulate the dynamic multiplicity evolution of hadron multiplicities we use the hadronic transport model "UrQMD" as microscopic model for high-energetic heavy ion collisions. Currently the equilibration times in this model are too long because detailed balance is not realized for all collisions which may occur. In our approach to get rid of this drawback we deploy Hagedorn-States proposed by the "Statistical Bootstrap Model". Creation of these states in binary collisions and their decay into two particles only will lower the thermalization times in UrQMD. Supported by HGS-HIRe.

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