Final-state interaction and recoil polarization in (e,e'p) reactions: comparison with the polarized target case

Abstract

A study of the total cross section for polarized proton knockout in $(e,e^{\prime }\vec{p})$ reactions is carried out for the closed-shell nucleus ${}^{40}$Ca. The dependence of FSI effects on polarization observables viewed as functions of the nucleon polarization angles is analyzed and interpreted within the basis of a semi-classical model for the orbit of the struck nucleon and trajectory of the ejected nucleon. A comparison with the case of a ${}^{39}$K polarized target and unpolarized protons is performed.

Comments: 25 pages, 10 figures