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Title: Restoration of chiral symmetry in a model with dynamical spontaneous symmetry breaking at finite temperature and density

Abstract

The chiral-symmetry-restoring transition in a model proposed by Lurie is investigated at finite temperature and density. A method is given to establish the self-consistency equation satisfied by the order parameter and a convenient scheme is constructed for calculating the equation of state approximately. Study of the phase diagram shows the existence of a critical point separating the first-order from the second-order chiral phase transition. By calculating the energy density versus temperature, the order of the chiral phase transition is confirmed. A careful analysis of isotherms of pressure versus net baryon-number density suggests the existence of overheated and overcooled metastable states and the coexistence of a broken phase and a normal phase.

Authors:
;  [1]
  1. Chinese Center of Advanced Science and Technology (World Laboratory), Box 8730, Beijing 100080 (China) Institute of Particle Physics, Hua-Zhong Normal University, Wuhan 430070 (China)
Publication Date:
OSTI Identifier:
6091889
Resource Type:
Journal Article
Journal Name:
Physical Review, D (Particles Fields); (United States)
Additional Journal Information:
Journal Volume: 44:11; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LAGRANGIAN FIELD THEORY; CHIRAL SYMMETRY; BARYON NUMBER; ENERGY DENSITY; EQUATIONS OF MOTION; EQUATIONS OF STATE; PHASE TRANSFORMATIONS; QUANTUM CHROMODYNAMICS; SYMMETRY BREAKING; TEMPERATURE DEPENDENCE; DIFFERENTIAL EQUATIONS; EQUATIONS; FIELD THEORIES; PARTIAL DIFFERENTIAL EQUATIONS; QUANTUM FIELD THEORY; SYMMETRY; 662120* - General Theory of Particles & Fields- Symmetry, Conservation Laws, Currents & Their Properties- (1992-); 662110 - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)

Citation Formats

Enke, Wang, and Jiarong, Li. Restoration of chiral symmetry in a model with dynamical spontaneous symmetry breaking at finite temperature and density. United States: N. p., 1991. Web. doi:10.1103/PhysRevD.44.3680.
Enke, Wang, & Jiarong, Li. Restoration of chiral symmetry in a model with dynamical spontaneous symmetry breaking at finite temperature and density. United States. https://doi.org/10.1103/PhysRevD.44.3680
Enke, Wang, and Jiarong, Li. 1991. "Restoration of chiral symmetry in a model with dynamical spontaneous symmetry breaking at finite temperature and density". United States. https://doi.org/10.1103/PhysRevD.44.3680.
@article{osti_6091889,
title = {Restoration of chiral symmetry in a model with dynamical spontaneous symmetry breaking at finite temperature and density},
author = {Enke, Wang and Jiarong, Li},
abstractNote = {The chiral-symmetry-restoring transition in a model proposed by Lurie is investigated at finite temperature and density. A method is given to establish the self-consistency equation satisfied by the order parameter and a convenient scheme is constructed for calculating the equation of state approximately. Study of the phase diagram shows the existence of a critical point separating the first-order from the second-order chiral phase transition. By calculating the energy density versus temperature, the order of the chiral phase transition is confirmed. A careful analysis of isotherms of pressure versus net baryon-number density suggests the existence of overheated and overcooled metastable states and the coexistence of a broken phase and a normal phase.},
doi = {10.1103/PhysRevD.44.3680},
url = {https://www.osti.gov/biblio/6091889}, journal = {Physical Review, D (Particles Fields); (United States)},
issn = {0556-2821},
number = ,
volume = 44:11,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 1991},
month = {Sun Dec 01 00:00:00 EST 1991}
}