Features of One-Boson-Exchange Potential Models

Abstract

We examine a number of features and questions related to realistic one-boson-exchange-potential models for the $N\ensuremath{-}N$ interaction, mainly from a phenomenological viewpoint. They include (i) the validity of the one-pion-exchange region concept and the classical impact-parameter formula, (ii) the effect of a discrete versus continuous mass for the $I=0$, $J=0$ meson field used to simulate the $2\ensuremath{\pi}$ continuum, (iii) the effect of an unconstrained versus constrained vector-meson field, (iv) the influence of "double regularization" upon phase shifts, and (v) the extension of effective-range theory to velocity-dependent interactions. The objectives are to obtain a physical understanding of the $N\ensuremath{-}N$ interaction and to provide heuristic guides to the further development of a quantitative theory of the fundamental nuclear force.