PHENOMENOLOGICAL APPROACH TO BARYON RESONANCE DAMPING IN NUCLEI

We analyse the total photonuclear cross section in the energy range fr om 0.2 to 1.2 GeV, recently measured in Frascati on C, Be and U. By em ploying a simple resonance-hole model for the various baryonic resonan ces. which exist in the above range, we find that the experimental cro ss sections can be fairly well reproduced if one assumes that the nucl ear medium strongly increases the width of all resonances above the DE LTA.