Reference : Phase transition and thermodynamics of a hot and dense system in a scaled NJL model

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/23464

Title :	Phase transition and thermodynamics of a hot and dense system in a scaled NJL model
Language :	English
Author, co-author :	Cugnon, Joseph [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Interactions fondamentales en physique et astrophysique >]
	Jaminon, Martine [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
	Van den Bossche, Bruno [ > > ]
Publication date :	1996
Journal title :	Nuclear Physics A
Publisher :	Elsevier Science
Volume :	598
Pages :	515-538
Audience :	International
ISSN :	0375-9474
City :	Amsterdam
Country :	The Netherlands
Keywords :	[en] phase transition ; effective chiral lagrangians ; hot and dense matter
Abstract :	[en] he chiral phase transition of a hot and dense system of quarks is studied within a modified SU(3) NJL Lagrangian that implements the QCD scale anomaly. The u- and s-quark condensates can or can not feel the same chiral restoration depending on the considered region of the three-dimensional space (Tc, muuc, musc). The temperature behaviour of the pressure and the energy and entropy densities of the u- and s-quark system is investigated. At high temperature, the non-vanishing bare s-quark mass only modifies slightly the usual behaviour associated with an ideal quark gas.
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/23464
DOI :	10.1016/0375-9474(95)00501-3

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