Photon absorption on a neutron-proton pair in $^3$He

Details Photon absorption on a neutron-proton pair in $^3$He Photon absorption on a neutron-proton pair in $^3$He

1994-05-31

arxiv.org/abs/nucl-th/9405029v1

Phys.Lett. B335 (1994) 109-112

Physics

Nuclear Physics

Nuclear Theory

7 pages (latex) and 2 figures (postscript) available on request, MKPH-T-94-9

Scientific paper

10.1016/0370-2693(94)91399-4

The cross section of the reaction $^3$He$(\gamma,pn)p_{spec}$ in the energy range 150 - 450 MeV has been calculated in a quasifree two-body model and compared with a recent kinematically complete experiment. In comparison with free deuteron disintegration the cross section is increased by a factor of about 1.5 in reasonable agreement with the data for photon energies above 200 MeV. At lower energies the data deviate from the two-body behaviour and thus suggest a more important role of the spectator requiring a more exact treatment.

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