Analysis of meson exchange and isobar currents in (e,e ' p) reactions fromO-16 - art. no. 014602

An analysis of the effects of meson exchange and isobar currents in exclusi ve (e,e'p) processes from O-16 under quasifree kinematics is presented. A m odel that has probed its feasibility for inclusive quasielastic (e,e') proc esses is considered. Sensitivity to final state interactions between the ou tgoing proton and the residual nucleus is discussed by comparing the result s obtained with phenomenological optical potentials and a continuum nuclear shell-model calculation. The contribution of the meson exchange and isobar currents to the response functions is evaluated and compared to previous c alculations, which differ notably from our results. These two-body contribu tions cannot solve the puzzle of the simultaneous description of the differ ent responses experimentally separated. [S0556-2813(99)01207-8].