Correlations in Hot Asymmetric Nuclear Matter

Details Correlations in Hot Asymmetric Nuclear Matter Correlations in Hot Asymmetric Nuclear Matter

2004-09-28

arxiv.org/abs/nucl-th/0409067v1

Phys.Rev. C71 (2005) 014313

Physics

Nuclear Physics

Nuclear Theory

7 pages, 7 figures

Scientific paper

10.1103/PhysRevC.71.014313

The single-particle spectral functions in asymmetric nuclear matter are computed using the ladder approximation within the theory of finite temperature Green's functions. The internal energy and the momentum distributions of protons and neutrons are studied as a function of the density and the asymmetry of the system. The proton states are more strongly depleted when the asymmetry increases while the occupation of the neutron states is enhanced as compared to the symmetric case. The self-consistent Green's function approach leads to slightly smaller energies as compared to the Brueckner Hartree Fock approach. This effect increases with density and thereby modifies the saturation density and leads to smaller symmetry energies.

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