Nuclear Matter and Finite Nuclei in the Effective Chiral Model

TL;DR

This paper explores the stability and properties of nuclear matter and finite nuclei using an effective chiral model with higher order sigma terms, calibrating parameters for stable vacuum and applying to finite nuclei.

Contribution

It introduces a systematic approach to parameterize the effective chiral model ensuring vacuum stability and applies it to finite nuclei analysis.

Findings

Parameter sets yield moderate equations of state.

Model maintains global vacuum stability at various densities.

Applied model successfully to finite nuclei calculations.

Abstract

We systematically investigate the vacuum stability and nuclear properties in the effective chiral model with higher order terms in $\sigma$. We evaluate the model parameters by considering the saturation properties of nuclear matter as well as the normal vacuum to be globally stable at zero and finite baryon densities. We can find parameter sets giving moderate equations of state, and apply these models to finite nuclei.