Chiral phase transition and QCD phase diagram from AdS/QCD

We study the chemical potential effects on the chiral phase transition in a simply improved soft-wall AdS/QCD model, which can realize consistently the properties of linear confinement and spontaneous chiral symmetry breaking. The μ−T phase diagrams with both zero and physical quark masses have been...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2019-02, Vol.99 (3), p.1, Article 034028
Main Authors: Fang, Zhen, Wu, Yue-Liang, Zhang, Lin
Format: Article
Language:English
Subjects:
Broken symmetry
Chemical potential
Critical temperature
Crossovers
Organic chemistry
Phase diagrams
Phase transitions
Quantum chromodynamics
Quarks
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study the chemical potential effects on the chiral phase transition in a simply improved soft-wall AdS/QCD model, which can realize consistently the properties of linear confinement and spontaneous chiral symmetry breaking. The μ−T phase diagrams with both zero and physical quark masses have been obtained from this model. For the case of physical quark mass, the chiral transition has a crossover behavior at low chemical potential. With the increase of the chemical potential μ, the critical temperature Tc descends toward zero, and the crossover transition turns into a first-order one at some intermediate value of μ, which implies that a critical endpoint naturally exists in this improved soft-wall model. All these features agree with our current perspective on the quantum chromodynamics phase diagram.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.99.034028