Studying the omega mass in-medium in gamma+A ->pi(0)gamma+X reactions

Simulations based on a coupled-channel transport model have been performed to analyze the feasibility to study the in-medium omega mass exploiting the process gamma + A --> pi (o)gamma + X for C, Ca and Nb nuclei. The distort ions due to final-state interactions of the pi (o) and background contribut ions from the reaction gamma + A --> pi (o)pi (o) + X are found to be small in the mass range of interest (0.6 < M-<pi>o gamma < 0.8 GeV). Furthermore , the effect of the detector resolution on the <pi>(o)gamma mass determinat ion is discussed.