High energy deuteron photodisintegration

Abstract Results are presented for two-body deuteron photodisintegration, i.e. d(γ,p)n, at θ CM = 90° and for photon energies up to 1.6 GeV. These results are discussed in the light of several theoretical models. The data suggest that, at the highest energies, the energy dependence of the cross section is that given by simple constituent counting. We also discuss the need for additional work, both experimental and theoretical, to help resolve conflicting points of view.