Skyrme Model with Different Mass Terms

TL;DR

This paper introduces a modified Skyrme model with a new mass term that reduces the stability of shell-like multi-baryon configurations, aiming for a more accurate nuclear description.

Contribution

It proposes a one-parameter family of mass terms that favor shell-like configurations, improving the Skyrme model's alignment with nuclear structures.

Findings

Shell-like configurations are less stable with the new mass terms.

The modified model better describes nuclei as shell-like structures.

Potential for improved nuclear modeling with adjusted mass terms.

Abstract

We consider a one parameter family of mass terms for the Skyrme model that disfavours shell-like configurations for multi-baryon classical solutions. We argue that a model with such mass terms can provide a better description of nuclei as shell like configurations are now less stable than in the traditional massive Skyrme model