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HK: Fachverband Physik der Hadronen und Kerne

HK 11: Hadronenstruktur und -spektroskopie III

HK 11.9: Vortrag

Montag, 21. März 2011, 18:45–19:00, C-2

In-Medium Properties of Vector Mesons in a Transport Approach — •Janus Weil and Ulrich Mosel — Institut für Theoretische Physik, Universität Giessen, Germany

We investigate in-medium properties of vector mesons with the GiBUU transport model [1]. On the one hand we present simulation results of dilepton spectra from pp, pA and AA reactions, as measured by the HADES detector at GSI [2], on the other hand we also treat hadronic decay modes like ω→π⁰γ, which is being studied experimentally by the TAPS group [3]. Our analysis aims for an investigation of in-medium modifications of the light vector mesons in nuclear matter, e.g. via collisional broadening and mass shifts, and the question how experimentally accessible observables are influenced by such effects.

Work supported by HGS-HIRe.

[1] http://gibuu.physik.uni-giessen.de

[2] I. Fröhlich et al., Int.J.Mod.Phys.A24 (2009) 317-326.

[3] M. Nanova, J. Weil et al., arXiv:1008.4520 (2010).