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A recently developed model for ρ-meson propagation in dense hadronic matter is applied to total photoabsorption cross sections in γ-proton and γ-nucleus reactions. Within the vector dominance model the photon coupling to the virtual pion cloud of the nucleon, two-body meson-exchange currents, as well as γ-nucleon resonances are included. Whereas the γp reaction is determined by the low-density limit...
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