期刊
NUCLEAR PHYSICS A
卷 793, 期 -, 页码 67-78出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2007.06.015
关键词
asymmetric nuclear matter; Brueckner-Hartree-Fock approximation; equation of state; Green function approach
The properties of asymmetric nuclear matter have been investigated in the framework of the self-consistent Green function approach at zero temperature. Results of the total energy per nucleon as a function of the density and asymmetry parameter are presented for two modern realistic nucleon-nucleon interactions: Nijmegen II and CD-Bonn. For comparison purposes, the same calculations are performed for Brueckner-Hartree-Fock approximation. Also we have compared our results with the predictions of other theoretical models especially the Dirac-Brueckner-Hartree-Fock approach. The self-consistent Green's function approach leads to a stiffer equation of state as compared to the Brueckner-Hartree-Fock approximation. This effect increases with density. (C) 2007 Elsevier B.V. All rights reserved.
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