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Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 15: Schwerionenkollisionen und QCD Phasen III

HK 15.7: Talk

Tuesday, March 22, 2011, 15:45–16:00, HS AP

Dimuon radiation from a hybrid evolution model — •Elvira Santini1 and Marcus Bleicher1,21Institut für Theoretische Physik, Goethe-Universität Frankfurt — 2Frankfurt Institute for Advanced Studies (FIAS)

We analyze dilepton emission from hot and dense matter created in heavy-ion collisions using a hybrid approach based on the UrQMD transport model with an intermediate hydrodynamic stage for the modeling of heavy-ion dynamics. During the hydrodynamic stage dilepton emission from hadronic and quark-gluon matter is described by radiation rates for a strongly interacting medium in thermal equilibrium. Focusing on the enhancement with respect to the contribution from long-lived hadron decays after freeze-out observed at the SPS in the dilepton spectra the relative importance of the various sources is discussed. A comparison to NA60 data is performed.

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