A Relativistic Separable Potential to Describe Pairing in Nuclear Matter

Abstract

Using the Dirac-Hartree-Fock-Bogoliubov approximation to study nuclear pairing, we have found the short-range correlations of the Dirac ${}^1$S${}_0$ pairing fields to be essentially identical to those of the two-nucleon virtual state at all values of the baryon density. We make use of this fact to develop a relativistic separable potential that correctly describes the pairing fields.

Comments: 17 pages, 4 eps-figures