Shell approach to the theory of low-energy neutron capture

Some applications are reviewed of the shell-model approach to the giant resonances and the region of isolated resonances is discussed with main emphasis on deviations from the statistical model due to channel capture. Various patametrizations are given for the scattering matrix, and the identification of the corresponding resonance and background parameters with theoretical quantities discussed. The relationship between the present formulation and the work of Lane, Lynn and Mughabghab is exhibited, both formally and numerically. (Auth.)