Direct capture of protons in the medium-energy range

Abstract

Direct capture of protons to the bound states in 12C and 13N is treated using a previously suggested consistent approach to the capture reactions. In this approach, the initial state is represented by an optical model wavefunction and the final state by a single-particle wavefunction bound to the nuclear potential. The influence of the complicated configurations involved in the process is taken into account by employing a consistency requirement for the electromagnetic transition operator. The approach is tested against the capture of medium-energy protons by the light nuclei, where the direct process strongly dominates. The quality of the results obtained proves the validity of the consistency principle even at medium energies.