NN final-state interaction in two-nucleon knockout from ${}^{16}O$

Abstract

The influence of the mutual interaction between the two outgoing nucleons (NN-FSI) in electro- and photoinduced two-nucleon knockout from ${}^{16}O$ has been investigated perturbatively. It turns out that the effect of NN-FSI depends on the kinematics and on the type of reaction considered. The effect is generally larger in pp- than in pn-knockout and in electron induced than in photoinduced reactions. In superparallel kinematics NN-FSI leads in the $(e,e^{\prime }pp)$ channel to a strong increase of the cross section, that is mainly due to a strong enhancement of the $\Delta$-current contribution. In pn-emission, however, this effect is partially cancelled by a destructive interference with the seagull current. For photoreactions NN-FSI is considerably reduced in superparallel kinematics and can be practically negligible in specific kinematics.

16 pages, 9 figures

References in corpus (1)

• On the NN-final-state-interaction in the ${}^{16}O(e,e^{\prime }pp)$ reaction

Cited by in corpus (7)

• Effects of nuclear correlations on the ${}^{16}$O$(e,e^{\prime }pN)$ reactions to discrete final states
• First measurements of the ^16O(e,e'pn)^14N reaction
• Knockout of proton-neutron pairs from ${}^{16}$O with electromagnetic probes
• Photo-emission of two protons from nuclei
• On the treatment of the $\Delta$-contribution in electromagnetic $pp$-knockout reactions
• Electromagnetic proton-neutron knockout off 16O: new achievements in theory
• Center-of-mass effects in electromagnetic two-proton knockout reactions