NUCLEAR SHADOWING AND RHO-PHOTOPRODUCTION

rho photoproduction on complex nuclei is reexamined using a generalize d vector dominance model which successfully predicts the observed nucl ear shadowing in real photoabsorption and deep inelastic scattering. T his model is shown to give a good fit to rho photoproduction data on b oth nucleons and complex nuclei, in which the disagreement between the measured gamma-rho coupling and the gamma-rho coupling required by th e simple vector dominance model is eliminated. The rho N total cross s ections required are similar to those predicted by the additive quark model, and the magnitude of the correction to simple vector dominance is consistent with that inferred from the analysis of real photoabsorp tion and deep inelastic scattering. [S0556-2813(98)00505-6].