Transport analysis of in-medium hadron effects in pA and AA collisions
Institut für Theoretische Physik, Justus Liebig Universität Giessen, D-35392, Giessen, Germany
* e-mail: Wolfgang.Cassing@theo.physik.uni-giessen.de
The production and decay of vector mesons () in pA and AA reactions is studied with particular emphasis on their in-medium spectral functions. It is explored within transport calculations if hadronic in-medium decays like or might provide complementary information to their dilepton (e + e -) decays. Whereas the signal from the -meson is found to be strongly distorted by pion rescattering, the -meson Dalitz decay to appears promising even for more heavy nuclei in and pA reactions. Furthermore, the influence of nucleon and kaon/antikaon potentials on the yields and spectra in pA collisions is calculated and compared to the recent data from the ANKE Collaboration.
© Società Italiana di Fisica and Springer-Verlag, 2003