Bonn 2010 – wissenschaftliches Programm
HK 17.6: Vortrag
Dienstag, 16. März 2010, 15:15–15:30, HG IV
Observing In-Medium Properties of Vector Mesons in Elementary Nuclear Reactions — •Janus Weil and Ulrich Mosel — Institut für Theoretische Physik, Universität Giessen
We investigate in-medium properties of vector mesons in photon- and proton-induced nuclear reactions within the GiBUU transport model . While our main focus lies on the simulation of dilepton spectra, as measured by g7 (JLAB), HADES (GSI) and E325 (KEK) [2,3], we also treat hadronic decay modes like ω→π0γ, which is being studied experimentally by the TAPS group . Our analysis aims for an investigation of in-medium modifications of the light vector mesons in cold nuclear matter, i.e. collisional broadening and mass shifts, and the question how experimentally accessible observables are influenced by such effects.
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