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Title: Mass sensitivity of the three-flavor chiral phase transition

Abstract

The mass sensitivity of the chiral phase transition of QCD with and without axial UA(1)-symmetry breaking at vanishing and finite quark chemical potential is investigated. To focus on the low-energy sector of QCD, a quark-meson model with three dynamical quark flavors is employed. Non-perturbative quantum fluctuations are taken into account with the functional renormalization group. The inherent ambiguities in fixing the low-energy model parameters away from the physical mass point and their consequences for spontaneous chiral symmetry breaking are discussed in detail and a heuristic parameter fixing scheme motivated by chiral perturbation theory is proposed. The influence of vacuum and thermal fluctuations of quarks and mesons on the order of the chiral phase transition is additionally assessed with a mean-field analysis.

Authors:
 [1];  [2];  [1]
  1. Justus-Liebig-Univ. Gießen, Gießen (Germany)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1529257
Report Number(s):
BNL-211711-2019-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 99; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Resch, Simon, Rennecke, Fabian, and Schaefer, Bernd -Jochen. Mass sensitivity of the three-flavor chiral phase transition. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.99.076005.
Resch, Simon, Rennecke, Fabian, & Schaefer, Bernd -Jochen. Mass sensitivity of the three-flavor chiral phase transition. United States. doi:10.1103/PhysRevD.99.076005.
Resch, Simon, Rennecke, Fabian, and Schaefer, Bernd -Jochen. Wed . "Mass sensitivity of the three-flavor chiral phase transition". United States. doi:10.1103/PhysRevD.99.076005. https://www.osti.gov/servlets/purl/1529257.
@article{osti_1529257,
title = {Mass sensitivity of the three-flavor chiral phase transition},
author = {Resch, Simon and Rennecke, Fabian and Schaefer, Bernd -Jochen},
abstractNote = {The mass sensitivity of the chiral phase transition of QCD with and without axial UA(1)-symmetry breaking at vanishing and finite quark chemical potential is investigated. To focus on the low-energy sector of QCD, a quark-meson model with three dynamical quark flavors is employed. Non-perturbative quantum fluctuations are taken into account with the functional renormalization group. The inherent ambiguities in fixing the low-energy model parameters away from the physical mass point and their consequences for spontaneous chiral symmetry breaking are discussed in detail and a heuristic parameter fixing scheme motivated by chiral perturbation theory is proposed. The influence of vacuum and thermal fluctuations of quarks and mesons on the order of the chiral phase transition is additionally assessed with a mean-field analysis.},
doi = {10.1103/PhysRevD.99.076005},
journal = {Physical Review D},
number = 7,
volume = 99,
place = {United States},
year = {2019},
month = {4}
}

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