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HK: Physik der Hadronen und Kerne

HK 25: Physik mit schweren Ionen

HK 25.3: Vortrag

Dienstag, 8. März 2005, 14:45–15:00, TU MA144

Resonance Absorption and Regeneration in Heavy Ion Collisions — •Sascha Vogel and Marcus Bleicher — Institut für Theoretische Physik, Johann Wolfgang Goethe Universität Frankfurt am Main, 60054 Frankfurt am Main

We show that the regeneration of hadronic resonances plays an important role in heavy ion collisions at SPS and RHIC energies. We investigate the time evolution and Δ, ρ and Φ resonances after chemical freeze-out and explore at which time the resonances the experiment detects decay. Since detailed experimental studies of these resonances became recently available, this will contraint the modeling of hadronic interactions and provides new insights into the decoupling stage of massive nuclear collisions.