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

Journal Article · · Physical Review D
 [1];  [2];  [1]
  1. Justus-Liebig-Univ. Gießen, Gießen (Germany)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)

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.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704
OSTI ID:
1529257
Report Number(s):
BNL-211711-2019-JAAM; PRVDAQ
Journal Information:
Physical Review D, Vol. 99, Issue 7; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (5)

Localized rainbows in the QCD phase diagram journal January 2020
Quarks and light (pseudo-)scalar mesons at finite chemical potential journal September 2019
Renormalization group consistency and low-energy effective theories text January 2019
QCD phase structure at finite temperature and density text January 2020
Quarks and light (pseudo-)scalar mesons at finite chemical potential text January 2019

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