Chiral Thermodynamics of Dense QCD

TL;DR

This paper explores the phase diagram of dense QCD using a two-flavored parity doublet model, revealing an exotic phase with unbroken center symmetry and distinctive baryon number susceptibility behavior.

Contribution

It introduces a novel phase diagram for dense QCD incorporating an exotic phase with unbroken center symmetry, analyzed via mean field approximation.

Findings

Identification of an exotic phase with unbroken center symmetry

Characteristic feature in baryon number susceptibility at phase boundary

Phase diagram mapping of dense QCD with parity doublet model

Abstract

We show a phase diagram of a two-flavored parity doublet model on top of the nuclear matter ground state within the mean field approximation. An exotic phase with unbroken center symmetry of chiral group is also discussed. When crossing this phase boundary the baryon number susceptibility exhibits a characteristic feature.