X iv : n uc l - th / 9 30 30 18 v 1 2 6 M ar 1 99 3 Dirac Hartree - Fock for Finite Nuclei Employing Realistic
نویسندگان
چکیده
We discuss two different approximation schemes for the self-consistent solution of the relativistic Brueckner-Hartree-Fock equation for finite nuclei. In the first scheme, the Dirac effects are deduced from corresponding nuclear matter calculations, whereas in the second approach the local-density approximation is used to account for the effects of correlations. The results obtained by the two methods are very similar. Employing a realistic one-boson-exchange potential (Bonn A), the predictions for energies and radii of 16 O and 40 Ca come out in substantially better agreement with experiment as compared to non-relativistic approaches. As a by-product of our study, it turns out that the Fock exchange-terms, ignored in a previous investigation, are not negligible.
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