Relativistic mean-field theory and a density-dependent spin-orbit Skyrme force

Abstract
We generalize the Skyrme force by making its spin-orbit component density dependent. One of the two extra parameters thereby introduced is fixed by performing Hartree-Fock calculations on semi-infinite nuclear matter, and comparing with relativistic Hartree calculations performed on the same system in the nonlinear σ-ω model. In this way an essential feature of the relativistic theory is incorporated into the nonrelativistic framework of Skyrme forces.