Critical surface of theSU(3)L×SU(3)Rchiral quark model at nonzero baryon density

2006/11/15 by Péter Kovács, P. Kovacs, Zs. Szép +1 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.75.025015

published as Phys.Rev.D75:025015,2007 · RevTeX4, 10 pages, 4 figures

arxiv created 2006/11/15 · openalex publication_date 2007/01/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

The boundary of the first order chiral phase transition region is studied in the m_\ensuremathπ\ensuremath-m_K\ensuremath-\ensuremathμ_B 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 \ensuremathμ_B towards the physical point of the m_\ensuremathπ\ensuremath-m_K mass plane allowing for the existence of the critical end point in the \ensuremathμ_B\ensuremath-T plane at the physical point. The location and scaling region of the CEP is explored.

Citations

• Baryon masses, chiral extrapolations, and all that⋆
• Chiral Dynamics in Nucleons and Nuclei

Cited by

• Three-flavor chiral phase structure in hot and dense QCD matter
• Critical surface in hot and dense QCD with the vector interaction