Induced Nucleon Polarization and Meson-Exchange Currents in (e,e'p) Reactions

Abstract

Nucleon recoil polarization observables in $(e,e^{\prime }\vec{p})$ reactions are investigated using a semi-relativistic distorted-wave model which includes one- and two-body currents with relativistic corrections. Results for the induced polarization asymmetry are shown for closed-shell nuclei and a comparison with available experimental data for ${}^{12}$C is provided. A careful analysis of meson exchange currents shows that they may affect significantly the induced polarization for high missing momentum.

7 pages, 9 figures. Revised version with small changes, new curve in Fig. 3. To be published in PRC