Chiral symmetry breaking and electromagnetic structure of the nucleon

TL;DR

This paper calculates the charge radii of octet baryons using a chiral constituent quark model with configuration mixing, aligning well with experimental data and advancing understanding of nucleon structure.

Contribution

It introduces a chiral constituent quark model with spin-spin configuration mixing to improve predictions of baryon charge radii.

Findings

Charge radii predictions agree with recent experimental data.

Model shows improvement over previous theoretical approaches.

Provides insights into nucleon electromagnetic structure.

Abstract

The electromagnetic form factors are the most fundamental quantities to describe the internal structure of the nucleon and are related to the charge radii of the baryons. We have calculated the charge radii of octet baryons in the framework of chiral constituent quark model with the inclusion of the spin-spin generated configuration mixing. This model is quite successful in predicting the low energy hadron matrix elements. The results obtained in the case of charge radii are also comparable to the latest experimental studies and show improvement over some theoretical interpretations.