Correlations in Nuclear Matter

Abstract

We analyze the nuclear matter correlation properties in terms of the pair correlation function. To this aim we systematically compare the results for the variational method in the Lowest Order Constrained Variational (LOCV) approximation and for the Bruekner-Hartree-Fock (BHF) scheme. A formal link between the Jastrow correlation factor of LOCV and the Defect Function (DF) of BHF is established and it is shown under which conditions and approximations the two approaches are equivalent. From the numerical comparison it turns out that the two correlation functions are quite close, which indicates in particular that the DF is approximately local and momentum independent. The Equations of State (EOS) of Nuclear Matter in the two approaches are also compared. It is found that once the three-body forces (TBF) are introduced the two EOS are fairly close, while the agreement between the correlation functions holds with or without TBF.

11 figures

References in corpus (5)

• Hot neutron matter from a Self-Consistent Green's Functions approach
• Equation of State of Nuclear Matter at high baryon density
• In medium T-matrix for nuclear matter with three-body forces - binding energy and single particle properties
• The entropy of a correlated system of nucleons
• Spinodal instabilities of asymmetric nuclear matter within the Brueckner--Hartree--Fock approach

Cited by in corpus (4)

• On the Maximum Mass of Neutron Stars
• Selecting microscopic Equations of State
• The neutron star in Cassiopeia A: equation of state, superfluidity, and Joule heating
• Nucleon momentum distributions in asymmetric nuclear matter