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 intuiti...

In the framework of the Brueckner-Bethe-Goldstone theory, we determine a fully microscopic equation of state for asymmetric and β-stable nuclear matter containing Σ and Λ hyperons. We use the Paris and the new Argonne Av18 two-body nucleon interaction, whereas the nucleon-hyperon interaction is described by the Njimegen soft-core model. We stress the role played by the three-body nucleon intera...

Expression of the nucleon-nucleon interaction to order 1/NC in terms of Fermi Invariants allows a dynamical interpretation of the interaction and leads to a consistent construction of the associated interaction currents to order 1/NC . The numerically significant components of 4 different modern realistic phenomenological interaction models are shown to admit very similar meson exchange interpr...