Axial charges of octet and decuplet baryons

TL;DR

This paper investigates the axial charges of various octet and decuplet baryons using relativistic constituent quark models, comparing predictions with experimental data, lattice QCD, and chiral perturbation theory to understand chiral symmetry breaking.

Contribution

It provides a comprehensive relativistic quark model calculation of baryon axial charges and compares these with other theoretical and experimental results.

Findings

Predictions align well with lattice QCD data.

Results shed light on chiral symmetry breaking effects.

Highlights the importance of axial charges in baryon structure.

Abstract

We present a study of axial charges of baryon ground and resonant states with relativistic constituent quark models. In particular, the axial charges of octet and decuplet $N$, $\Sigma$, $\Xi$, $\Delta$, $\Sigma^*$, and $\Xi^*$ baryons are considered. The theoretical predictions are compared to existing experimental data and results from other approaches, notably from lattice quantum chromodynamics and chiral perturbation theory. The relevance of axial charges with regard to $\pi$-dressing and spontaneous chiral-symmetry breaking is discussed.