COLD NEUTRON AND NUCLEAR-MATTER WITH EFFECTIVE AND REALISTIC INTERACTIONS

A study of the equation of state (EOS) for cold asymmetric nuclear mat ter and beta-stable matter using effective interactions, of zero range (Skyrme type) and finite range type (D1-Gogny), is performed in the H artree-Fock approach. The results are systematically compared with rec ent microscopic calculations. Two parametrizations of the energy of as ymmetric nuclear matter in terms of the asymmetry parameter are tested in the case of effective interactions. While all forces agree rather well for nuclear matter, some discrepancies appear for neutron matter revealing the different spin-isospin contents of the interactions.