Phase diagram and critical properties within an effective model of QCD: the Nambu-Jona-Lasinio model coupled to the Polyakov loop
Jul, 2010
Citations per year
Abstract: (arXiv)
We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and non-zero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed and the relevant order-like parameters are analyzed. The results are compared with simple thermodynamic expectations and lattice data. We present the phase diagram in the ( plane, paying special attention to the critical end point: as the strength of the flavor-mixing interaction becomes weaker, the critical end point moves to low temperatures and can even disappear.Note:
- 46 pages, 11 figures, 3 tables
- 11.30.Rd
- 12.40.-y
- 11.10.Wx
- chiral symmetry
- phase transition
- restoration of symmetry
- critical phenomena: deconfinement
- potential: chemical
- Jona-Lasinio-Nambu model: Polyakov loop
- quantum chromodynamics
References(127)
Figures(21)