Nuclear Matter Equation of State and Three body Forces

TL;DR

This paper calculates key properties of asymmetric nuclear matter using Brueckner-Hartree-Fock approach with modern potentials, incorporating three-body forces to match experimental saturation data.

Contribution

It introduces a method to include three-body interactions as density-dependent two-nucleon forces within the BHF framework, improving agreement with data.

Findings

Good agreement with experimental data for saturation properties.

Accurate calculations of energy per particle, symmetry energy, pressure, and free energy.

Validation across multiple nucleon-nucleon potentials.

Abstract

The energy per particle, symmetry energy, pressure, Free energy are calculated for asymmetric nuclear matter using BHF approach and modern nucleon-nucleon CD-Bonn, Nijm1, Argonnev18 and Reid93 potentials. To obtain saturation in nuclear matter we add three-body interaction terms which are equivalent a la Skyrme to a density-dependent two-nucleon interaction. Good agreement is obtained in comparison with previous theoretical estimates and experimental data.