%0 Journal Article
%T Properties of dense, asymmetric nuclear matter in Dirac-Brueckner-Hartree-Fock approach
%A Tetsuya Katayama
%A Koichi Saito
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevC.88.035805
%X Within the Dirac-Brueckner-Hartree-Fock approach, using the Bonn potentials, we investigate the properties of dense, asymmetric nuclear matter and apply it to neutron stars. In the actual calculations of the nucleon self-energies and the energy density of matter, we study in detail the validity of an angle-averaged approximation and an averaging of the total momentum squared of interacting two-nucleons in nuclear matter. For practical use, we provide convenient parametrizations for the equation of state for symmetric nuclear matter and pure neutron matter. We also parametrize the nucleon self-energies in terms of polynomials of nucleon momenta. Those parametrizations can accurately reproduce the numerical results up to high densities.
%U http://arxiv.org/abs/1307.2067v1