uc l - th / 0 30 10 72 v 1 2 3 Ja n 20 03 Mapping exchange in relativistic Hartree - Fock

نویسندگان

  • A. Sulaksono
  • T. Bürvenich
  • J. A. Maruhn
چکیده

We show that formally for the standard ansatz relativistic point-coupling mean-field (RMF-PC) model a lagrangian density L is not equivalent in Hartree and Hartree-Fock approximations. The equivalency can be achieved only if we use a " complete " ansatz at the cost of introducing new parameters in the model. An approximate treatment of the exchange terms from standard RMF-PC indicates that these effects cannot be easily, if at all, absorbed by a Dirac-Hartree approximation.

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تاریخ انتشار 2003