Phenomenological construction of a relativistic nucleon-nucleon interaction for the superfluid gap equation in finite density systems

We construct phenomenologically a relativistic particle-particle channel in teraction which suits the gap equation for nuclear matter. This is done by introducing a density-independent momentum-cutoff parameter to the relativi stic mean field (Hartree and Hartree-Fock) models so as to reproduce the pa iring properties obtained by the Bonn-B potential and not to change the sat uration property. The interaction so obtained can be used for the relativis tic Hartree-Bogoliubov calculation, but some reservation is necessary for t he relativistic Hartree-Fock-Bogoliubov calculation. (C) 2001 Elsevier Scie nce B.V. All rights reserved.