RELATIVISTIC DENSITY-DEPENDENT HARTREE-FOCK APPROACH FOR FINITE NUCLEI

The nucleon self-energy obtained from the Dirac Brueckner-Hartree-Fock calculation is parametrized by introducing density-dependent coupling constants of isoscalar mesons in the relativistic Hartree-Fock (RHF) approach. The RHF calculations with density-dependent coupling constan ts not only reproduce the nuclear matter saturation properties, but al so provide a good starting point to study finite nuclei properties. Th e relativistic density-dependent Hartree-Fock (RDHF) approach contains the features of the relativistic G matrix and in the meantime simplif ies the calculation. The ground state properties of spherical nuclei c alculated in the RDHF are in good agreement with the experimental data . The contribution of isovector mesons pi and rho, especially the cont ribution of the tenser coupling of rho mesons, are discussed in this p aper.