The ${}^4$He$(e,e^{\mathrm{\prime }}p)$ Cross Section at Large Missing Energy

The $(e,e^{\mathrm{\prime }}p)$ reaction on ${}^{4}He$ nuclei was studied in kinematics designed to emphasize effects of nuclear short-range correlations. The measured cross sections display a peak in the kinematical regions where two-nucleon processes are expected to dominate. Theoretical models incorporating short-range correlation effects agree reasonably with the data.