Probing in-medium vector meson decays by double-differential di-electron spectra in heavy-ion collisions at SIS energies
KFKI RMKI, PO Box 49, 1525 Budapest, Hungary
2 Forschungszentrum Rossendorf, PF 510119, 01314 Dresden, Germany
3 Institute of Theoretical Physics 143, 252143 Kiev, Ukraine
Within a transport code simulation for heavy-ion collisions at bombarding energies around 1 AGeV, we demonstrate that double-differential di-electron spectra with suitable kinematical cuts are useful to isolate (i) the ρ meson peak even in case of strong broadening, and (ii) the in-medium ω decay contribution. The expected in-medium modifications of the vector meson spectral densities can thus be probed in this energy range via the di-electron channel.
© EDP Sciences, Springer-Verlag, 2008