Correlations in Hot Asymmetric Nuclear Matter

Abstract

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.

7 pages, 7 figures

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• Microscopic calculations and energy expansions for neutron-rich matter
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• Microscopic self-energy calculations and dispersive optical-model potentials
• Novel applications of the dispersive optical model
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• High momentum components in the nuclear symmetry energy
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• Three-body force effect on nucleon momentum distributions in asymmetric nuclear matter within the framework of the extended BHF approach
• Self-consistent Green's function approaches
• Universal correlations in the nuclear symmetry energy, slope parameter, and curvature
• Properties of asymmetric nuclear matter in different approaches
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• Spectroscopic Factors in 16O and Nucleon Asymmetry
• Universality of nucleon-nucleon short-range correlations: two-nucleon momentum distributions in few-body systems
• The entropy of a correlated system of nucleons
• Self-consistent Green's functions calculation of the nucleon mean-free path
• Tensor force effects and high-momentum components in the nuclear symmetry energy
• Universality of nucleon-nucleon short-range correlations and nucleon momentum distributions
• Delineating effects of tensor force on the density dependence of nuclear symmetry energy
• The isospin and neutron-to-proton excess dependence of short-range correlations
• Nucleon momentum distributions in asymmetric nuclear matter
• Spinodal instabilities of asymmetric nuclear matter within the Brueckner--Hartree--Fock approach
• Temperature dependence of single-particle properties in nuclear matter
• Phase-space distributions of nuclear short-range correlations
• Momentum distributions and spectroscopic factors of doubly-closed shell nuclei in correlated basis function theory
• Diagrammatic calculation of thermodynamical quantities in nuclear matter
• Imprints of Nuclear Symmetry Energy on Properties of Neutron Stars
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• Short-Range Correlations and Urca Process in Neutron Stars
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• Single-Particle Spectrum of Pure Neutron Matter
• A further update on possible crises in nuclear-matter theory
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• Three-body Force Effects on the Properties of Neutron-rich Nuclear Matter
• Proton spectral functions in finite nuclei based on the extended Brueckner-Hartree-Fock approach
• Spectral properties of nuclear matter