A simple analytical calculation of mean-field potential in heavy nuclei

Abstract

In many-body theory of particles with long range interaction potential, such as the potential of Newtonian gravity and its relativistic generalization, Newton-Birkhoff theorem plays a very important role. This theorem is violated in the case of short range interaction potential, such as the Yukawa potential in nuclear physics. We discuss the relevance of this in the many-body treatment of heavy nuclei. In particular, using techniques similar to those in Newtonian gravity, we calculate analytically the mean-field potential in heavy nuclei. The mean-field potential thus calculated depends on well known quantities such as the pion-nucleon coupling constant, inverse pion mass, nuclear radius and density. The qualitative features of the mean-field potential thus obtained is similar to the well known phenomenological Wood-Saxon potential.