Properties of dense, asymmetric nuclear matter in Dirac-Brueckner-Hartree-Fock approach
Abstract
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.
Keywords
Cite
@article{arxiv.1307.2067,
title = {Properties of dense, asymmetric nuclear matter in Dirac-Brueckner-Hartree-Fock approach},
author = {Tetsuya Katayama and Koichi Saito},
journal= {arXiv preprint arXiv:1307.2067},
year = {2013}
}
Comments
26 pages, 6 figures, 3 tables