Critical surface of the SU(3)L×SU(3)R chiral quark model at nonzero baryon density

P. Kovács, Z. Szép

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The boundary of the first order chiral phase transition region is studied in the mπ-mK-μB space using the one-loop optimized perturbation theory for the resummation of the perturbative series. Chiral perturbation theory for mesons and baryons is used for the T=0 parametrization of the model. The surface of second order transition points bends with increasing μB towards the physical point of the mπ-mK mass plane allowing for the existence of the critical end point in the μB-T plane at the physical point. The location and scaling region of the CEP is explored.

Original languageEnglish
Article number025015
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number2
DOIs
Publication statusPublished - 2007

Fingerprint

Baryon
quark models
Quarks
baryons
perturbation theory
Perturbation Theory
transition points
mesons
End point
scaling
Mesons
Parametrization
Critical point
Phase Transition
Model
Scaling
First-order
Series

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

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AB - The boundary of the first order chiral phase transition region is studied in the mπ-mK-μB space using the one-loop optimized perturbation theory for the resummation of the perturbative series. Chiral perturbation theory for mesons and baryons is used for the T=0 parametrization of the model. The surface of second order transition points bends with increasing μB towards the physical point of the mπ-mK mass plane allowing for the existence of the critical end point in the μB-T plane at the physical point. The location and scaling region of the CEP is explored.

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