# Perturbation Theory of Nuclear Matter with a Microscopic Effective Interaction

## TL;DR

This paper develops an improved microscopic effective interaction for nuclear matter using Correlated Basis Functions and perturbation theory, providing key properties that align with empirical data.

## Contribution

It introduces an updated effective interaction based on the Argonne-Urbana Hamiltonian, employing CBF and cluster expansion for nuclear matter analysis.

## Key findings

- Ground-state energy per nucleon matches empirical data
- Symmetry energy and pressure are consistent with experimental observations
- Single-particle spectrum aligns with known nuclear properties

## Abstract

An updated and improved version of the effective interaction based on the Argonne\textendash Urbana nuclear Hamiltonian\textemdash derived using the formalism of Correlated Basis Functions (CBF) and the cluster expansion technique\textemdash is employed to obtain a number of properties of cold nuclear matter at arbitrary neutron excess within the formalism of many-body perturbation theory. The numerical results\textemdash including the ground-state energy per nucleon, the symmetry energy, the pressure, the compressibility, and the single-particle spectrum\textemdash are discussed in the context of the available empirical information, obtained from measured nuclear properties and heavy-ion collisions.