Chiral restoration in excited nucleons versus SU(6)

TL;DR

This paper compares predictions of axial charges in excited nucleons from chiral symmetry restoration and SU(6) symmetry, aiming to understand hadron mass origins and the interplay of chiral symmetry and confinement.

Contribution

It introduces a comparative analysis of axial charges in excited nucleons based on two symmetry schemes, highlighting potential insights from lattice QCD measurements.

Findings

Axial charges differ significantly between the two symmetry schemes.

Lattice QCD can test these predictions to elucidate hadron mass origins.

Comparison may reveal the role of chiral symmetry in confinement.

Abstract

We compare axial charges of excited nucleons, as predicted by the chiral symmetry restoration picture, with the traditional, moderately successful for the ground-state baryons SU(6) symmetry. The axial charges of excited nucleons can (and will) be measured in lattice QCD simulations, and comparison of the lattice results with the two different symmetry schemes will give an insight on the origins of the excited hadron masses as well as on interrelations of chiral symmetry and confinement.