Chiral symmetry restoration in excited hadrons and dense matter

TL;DR

This paper explores the potential restoration of chiral symmetry in highly excited hadrons and the existence of confined yet chirally symmetric matter under extreme conditions, linking two related areas in quantum chromodynamics.

Contribution

It provides a comprehensive overview of the theoretical and experimental status of chiral symmetry restoration in excited hadrons and dense matter.

Findings

Chiral symmetry may be effectively restored in highly excited hadrons.

Confined matter could exhibit chiral symmetry at high densities.

The topics are interconnected in the context of QCD.

Abstract

We overview two interconnected topics: possible effective restoration of chiral symmetry in highly excited hadrons and possible existence of confined but chirally symmetric matter at low temperatures and high densities.