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How parameters and regularization affect the Polyakov–Nambu–Jona-Lasinio model phase diagram and thermodynamic quantities
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| We explore the phase diagram and the critical behavior of QCD thermodynamic quantities in the context of the so-called Polyakov-Nambu-Jona-Lasinio model. We show that this improved field theoretical model is a successful candidate for studying the equation of state and the critical behavior around the critical endpoint. We argue that a convenient choice of the model parameters is crucial to get the correct description of isentropic trajectories. The effects of the regularization procedure in several thermodynamic quantities is also analyzed. The results are compared with simple thermodynamic expectations and lattice data. | 554.25 KB | Adobe PDF |
Orientador(es)
Resumo(s)
We explore the phase diagram and the critical behavior of QCD thermodynamic quantities in the context of the so-called Polyakov-Nambu-Jona-Lasinio model. We show that this improved field theoretical model is a successful candidate for studying the equation of state and the critical behavior around the critical endpoint. We argue that a convenient choice of the model parameters is crucial to get the correct description of isentropic trajectories. The effects of the regularization procedure in several thermodynamic quantities is also analyzed. The results are compared with simple thermodynamic expectations and lattice data.
Descrição
Fonte: https://arxiv.org/abs/0909.5124
Palavras-chave
Polyakov-Nambu-Jona-Lasinio model QCD equation of state critical behavior critical endpoint
Contexto Educativo
Citação
Costa, Pedro & Hansen, Hardaye & Ruivo, Maria & Sousa, Celia. (2010). How parameters and regularization affect the PNJL model phase diagram and thermodynamic quantities. Phys. Rev. D. 81. DOI: https://doi.org/10.1103/PhysRevD.81.016007.
Editora
American Physical Society
Licença CC
Sem licença CC