Two-nucleon knockout contributions to the $^{12}$C$(e,e'p)$ reaction in the dip and {$Δ$}(1232) regions

Physics – Nuclear Physics – Nuclear Theory

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12 Revtex pages, 4 postscript figures (available upon request), University of Gent preprint SSF94-02-01

Scientific paper

10.1016/0370-2693(94)90147-3

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 $\Delta$(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.

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