Phase diagram and critical properties in the Polyakov--Nambu--Jona-Lasinio model
| Autor: | de Sousa, C. A., Costa, Pedro, Ruivo, M. C., Hansen, H. |
|---|---|
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | AIP Conf.Proc.1343:592,2011 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.3575104 |
| Popis: | We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and nonzero chemical potential with three quark flavours. 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. A special attention is payed to the critical end point: as the strength of the flavour-mixing interaction becomes weaker, the critical end point moves to low temperatures and can even disappear. Comment: Talk given at the 9th International Conference on Quark Confinement and the Hadron Spectrum - QCHS IX, Madrid, Spain, 30 August - September 2010 |
| Databáze: | arXiv |
| Externí odkaz: |
|