Effects of the final-state interaction in ($γ$,pn) and ($γ$,pp) processes

Details Effects of the final-state interaction in ($γ$,pn) and ($γ$,pp) processes Effects of the final-state interaction in ($γ$,pn) and ($γ$,pp) processes

1993-07-05

arxiv.org/abs/nucl-th/9307004v1

Nucl.Phys. A568 (1994) 828-854

Physics

Nuclear Physics

Nuclear Theory

30 pages, 11 figures (available from the authors upon request), INW0701

Scientific paper

10.1016/0375-9474(94)90362-X

A model is presented to describe electromagnetically induced two-nucleon emission processes in a shell-model picture. Distortions in the outgoing nucleon waves are accounted for by performing a partial-wave expansion in a real mean-field potential. The antisymmetry condition for the A-body wavefunctions is shown to be naturally preserved. The model is used to calculate ($\gamma$,pn) and ($\gamma$,pp) cross sections off the target nuclei $^{16}$O and $^{12}$C for photon energies ranging from 50 MeV up to the $\bigtriangleup$(1232) isobar threshold. Effects due to the pionic currents and intermediate $\bigtriangleup$ creation are implemented. The impact of the distortions due to the interaction of the outgoing nucleon waves with the (A-2) core is examined. Hadronic form factors are introduced to regularize the $\pi$NN vertices and the sensitivity of the cross section to the pion cut-off mass is examined. The relative contribution of the ($\gamma$,pp) and the ($\gamma$,pn) channel to the total photoabsorption strength is discussed. Further, the photon energy dependence of the ($\gamma$,pp)/($\gamma$,pn) ratio is investigated.

Affiliated with

Also associated with

No associations

Rating

Effects of the final-state interaction in ($γ$,pn) and ($γ$,pp) processes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Effects of the final-state interaction in ($γ$,pn) and ($γ$,pp) processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of the final-state interaction in ($γ$,pn) and ($γ$,pp) processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-717609