Hard gamma emission close to the GDR energy region

Abstract

We address mainly the nucleon radiative capture reactions at incident energies above 10 MeV, but sufficiently low so that bremsstrahlung and the quasi-deuteron mechanisms do not play significant role. The main process considered is the direct-semi-direct capture treated either conventionally as the DSD model or interpreted within statistical approach as the pre-equilibrium γ emission. We compare the model assumptions of both approaches and also their applicability and predictions. Workshop on Photon Strength Functions and Related Topics