Properties of asymmetric nuclear matter in different approaches

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-Hart...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2009-02, Vol.79 (2), Article 024308
Main Authors: Gögelein, P., van Dalen, E. N. E., Gad, Kh, Hassaneen, Kh. S. A., Müther, H.
Format: Article
Language:English
Subjects:
ASYMMETRY
DENSITY
EFFECTIVE MASS
EQUILIBRIUM
FORECASTING
HARTREE-FOCK METHOD
ISOVECTORS
MANY-BODY PROBLEM
MEAN-FIELD THEORY
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR MATTER
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
PHASE SHIFT
RELATIVISTIC RANGE
SATURATION
SKYRME POTENTIAL
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Summary: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{sub low-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 {beta}-equilibrium. Special attention is paid to behavior of the isovector component of the effective mass in neutron-rich matter.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.79.024308