Charge transition densities for the excitation and nucleon decay of the giant dipole resonance in 16O

Predictions on charge transition densities in 16O for the excitation of the giant dipole resonance are given within a continuum self-consistent RPA-SK3 theory. The nuclear states are allowed to decay with proton or neutron ejection. The discussion is focused on the analysis of the radial behavior of transition densities in terms of their microscopic structure. The role of RPA ground state correlations is clarified. The surface properties of resonant nuclear states extracted from photonuclear and (e,e'x) reactions at low momentum transfer are confronted with the full radial dependence of the resonant structure shown in charge transition densities. (orig.)