2008/09/19 by P. Gögelein, E. N. E. van Dalen, Kh. Gad +3 · 1 citation
Physics and Astronomy · #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #Quantum, superfluid, helium dynamics #nucl-th
paper · pdf · doi:10.1103/physrevc.79.024308
published as Phys.Rev.C79:024308,2009 · 16 pages, 7 figures
arxiv created 2008/09/19 · openalex publication_date 2009/02/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
Properties of asymmetric nuclear matter are derived from various many-body approaches. This includes phenomenological ones like the Skyrme Hartree-Fock and relativistic mean field approaches, which are adjusted to fit properties of nuclei, as well as more microscopic attempts like the Brueckner-Hartree-Fock approximation, a self-consistent Greens function method and the so-called V_low\ensuremath-k approach, which are based on realistic nucleon-nucleon interactions which reproduce the nucleon-nucleon phase shifts. These microscopic approaches are supplemented by a density-dependent contact interaction to achieve the empirical saturation property of symmetric nuclear matter. The predictions of all these approaches are discussed for nuclear matter at high densities in \ensuremathβ-equilibrium. Special attention is paid to behavior of the isovector component of the effective mass in neutron-rich matter.