Channel wave function and channel radiative capture cross sections

Abstract

Based on the intermediate interaction model, an approximate wave function for the entrance channel in the nucleon‐nucleus reaction is derived. It is valid in the exterior region as well as the region near the nuclear surface, and is expressed in terms of the wave function and reactance matrix of the optical model and of the near‐resonance parameters. Using this formalism the following processes are calculated: 1) resonance averaged channel radiative neutron capture cross section; 2) radiative capture in the inelastic channel of compound nucleus; 3) interference effect in the channel radiative neutron capture process; 4) laser induced neutron radiative capture reaction.