Abstract
The nuclear optical-model potential is investigated from a non-phenomenological standpoint. Its range of application is extended to the region of negative energies for the calculation of bound state energies and reduced widths. From general arguments and shell-model considerations, a form of the generalized optical-model potential is proposed consisting of an energy-independent term, a sum of factorable terms containing real and complex poles in the energy plane and a weakly energy-dependent “direct” term.
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