Modification of nucleon properties in nuclear matter and finite nuclei

TL;DR

This paper introduces a model that describes nuclear matter and finite nuclei by treating nucleons as solitons with quark degrees of freedom, revealing medium modifications of nucleon properties and a significant increase in nucleon radius at normal nuclear density.

Contribution

It presents a novel model integrating quark degrees of freedom and meson exchange to study medium modifications of nucleons within nuclear matter and finite nuclei.

Findings

Nucleon radius increases significantly at normal nuclear matter density.

Nucleon properties vary from the nuclear surface to the interior.

The model provides satisfactory results for nuclear properties.

Abstract

We present a model for the description of nuclear matter and finite nuclei, and at the same time, for the study of medium modifications of nucleon properties. The nucleons are described as nontopological solitons which interact through the self-consistent exchange of scalar and vector mesons. The model explicitly incorporates quark degrees of freedom into nuclear many-body systems and provides satisfactory results on the nuclear properties. The present model predicts a significant increase of the nucleon radius at normal nuclear matter density. It is very interesting to see the nucleon properties change from the nuclear surface to the nuclear interior.