Phases of QCD: lattice thermodynamics and a field theoretical model

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dc.creatorRatti, C.
dc.creatorThaler, M. A.
dc.creatorWeise, W.
dc.date2005-06-23
dc.date2006-01-13
dc.date.accessioned2026-07-07T11:04:46Z
dc.date.available2026-07-07T11:04:46Z
dc.descriptionWe investigate three-colour QCD thermodynamics at finite quark chemical potential. Lattice QCD results are compared with a generalized Nambu Jona-Lasinio model in which quarks couple simultaneously to the chiral condensate and to a background temporal gauge field representing Polyakov loop dynamics. This so-called PNJL model thus includes features of both deconfinement and chiral symmetry restoration. The parameters of the Polyakov loop effective potential are fixed in the pure gauge sector. The chiral condensate and the Polyakov loop as functions of temperature and quark chemical potential are calculated by minimizing the thermodynamic potential of the system. The resulting equation of state, (scaled) pressure difference and quark number density at finite quark chemical potential are then confronted with corresponding Lattice QCD data.
dc.description20 pages, 10 figures, version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0506234
dc.identifierhttp://arxiv.org/abs/hep-ph/0506234
dc.identifierPhys.Rev.D73:014019,2006
dc.identifierdoi:10.1103/PhysRevD.73.014019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189004
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePhases of QCD: lattice thermodynamics and a field theoretical model
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