Two-nucleon knockout contributions to the $^{12}$C$(e,e'p)$ reaction in the dip and {$Î$}(1232) regions
arXiv:nucl-th/9406015 · doi:10.1016/0370-2693(94)90147-3
Abstract
The contributions from $^{12}$C$(e,e'pn)$ and $^{12}$C$(e,e'pp)$ to the semi-exclusive $^{12}$C$(e,e'p)$ cross section have been calculated in an unfactorized model for two-nucleon emission. We assume direct two-nucleon knockout after virtual photon coupling with the two-body pion-exchange currents in the target nucleus. Results are presented at several kinematical conditions in the dip and $Î$(1232) regions. The calculated two-nucleon knockout strength is observed to account for a large fraction of the measured $(e,e'p)$ strength above the two-nucleon emission threshold.
12 Revtex pages, 4 postscript figures (available upon request), University of Gent preprint SSF94-02-01