Dresden 2013 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 55: Poster - Schwerionenkollisionen und QCD Phasen

HK 55.4: Poster

Mittwoch, 6. März 2013, 16:45–19:00, HSZ 3.OG

Systematics of pi0 and eta Dalitz decays in the Gold on Gold beam time of HADES — •Claudia Behnke — IKF, Goethe Universität Frankfurt

Lepton pairs emerging from decays of virtual photons are the most promising probes of dense hadronic matter. HADES measured systematically electron pair production in light, medium and heavy mass systems as well as in p and d induced reactions. The understanding of the corresponding experimental results calls for supporting studies from transport calculation. This contribution focuses on systematic studies of pi0 and eta Dalitz decays, relevant for the interpretation of the dynamics of the fireball created in the hot and dense stage. We will compare a clean sample of simulated mesons created with the PLUTO event generator to UrQMD cocktail simulations as well as real measured lepton pair distributions. Supported by BMBF (06FY9100I and 06FY7114), HIC for FAIR, EMMI, GSI, HGS-Hire and H-QM.