Consistent Study of - and Photon-Induced Nucleon Knockout from 16O

Single-particle (s.p.) overlap functions (OF) calculated, for the ¹⁶O nucleus, on the basis of the one-body density matrices (OBDM) emerging from various correlation methods, have been used to calculate the cross sections of the (e, e'p), (e, e'n), and (γ,p) reactions, for the transitions to the 1/2^- ground state and the first 3/2^- excited state of the residual nucleus. A consistent analysis, with consistent ingredients, i.e., overlap functions, spectroscopic factors, and optical model parameters, has been performed of (e, e'p) and (γ,p) reaction cross sections. For the transition to the ground state of ¹⁵N the best description of the (γ,p) data is given by the overlap function able to give also the best description of the (e, e'p) data. This is a strong indication in favor of the consistency in the analysis of both reactions and makes it possible to study the nucleon-nucleon correlation effects.