Eur. Phys. J. A 11, 15-24 (2001)
Correlations and the Dirac structure of the nucleon self-energy
E. Schiller and H. MütherInstitut für Theoretische Physik, Universität Tübingen, D-72076 Tübingen, Germany herbert.muether@uni-tuebingen.de
(Received: 29 January 2001 Communicated by P. Schuck)
Abstract
The Dirac structure of the nucleon self-energy in symmetric nuclear matter as
well as neutron matter is derived from a realistic meson exchange model for the
nucleon-nucleon (NN) interaction. It is demonstrated that the effects of
correlations on the effective NN interaction in the nuclear medium can be
parameterized by means of an effective meson exchange. This analysis leads to a
very intuitive interpretation of correlation effects and also provides an
efficient parametrization of an effective interaction to be used in
relativistic structure calculations for finite nuclei.
21.30.Fe - Forces in hadronic systems and effective interactions.
21.65.+f - Nuclear matter.
© Società Italiana di Fisica, Springer-Verlag 2001
