Relativistic calculation of the pion loop correlation energy in nuclear matter in a theory including confinement

Details Relativistic calculation of the pion loop correlation energy in nuclear matter in a theory including confinement Relativistic calculation of the pion loop correlation energy in nuclear matter in a theory including confinement

2009-05-05

arxiv.org/abs/0905.0605v1

Phys.Rev.C80:015202,2009

Physics

Nuclear Physics

Nuclear Theory

14 pages, 4 figures, submitted to Phys. Rev. C

Scientific paper

10.1103/PhysRevC.80.015202

We present a relativistic calculation of the saturation properties of nuclear matter which contains the correlation energy. Pion loops are incorporated on top of a relativistic Hartree-Fock (RHF) approach based on a chiral theory. It includes the effect of nucleon structure through its response to the background chiral invariant scalar field. All the parameters which enter the RHF calculation are fixed or strongly constrained by hadron phenomenology or lattice data. The new input for the correlation energy is the Landau-Migdal parameter g? governing the short-range part of the spin-isospin interaction. We find that the inclusion of the correlation energy improves the description of the saturation properties of nuclear matter.

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