Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4339
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dc.contributor.authorOsipov, A. A.-
dc.contributor.authorHiller, B.-
dc.contributor.authorMoreira, J.-
dc.contributor.authorBlin, A. H.-
dc.date.accessioned2008-09-01T11:05:25Z-
dc.date.available2008-09-01T11:05:25Z-
dc.date.issued2008en_US
dc.identifier.citationPhysics Letters B. 659:1-2 (2008) 270-274en_US
dc.identifier.urihttp://hdl.handle.net/10316/4339-
dc.description.abstractThis work is a follow-up of our recent observation that in the SU(3) flavor limit with vanishing current quark masses the temperature for the chiral transition is substantially reduced by adding eight-quark interactions to the Nambu-Jona-Lasinio Lagrangian with UA(1) breaking. Here we generalize the case to realistic light and strange quark masses and confirm our prior result. Additionally, we demonstrate that depending on the strength of OZI violating eight-quark interactions, the system undergoes either a rapid crossover or a first order phase transition. The meson mass spectra of the low lying pseudoscalars and scalars at T=0 are not sensitive to the difference in the parameter settings that correspond to these two alternatives, except for the singlet-octet mixing scalar channels, mainly the [sigma] meson.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6TVN-4R53R8N-2/1/650d8850faf17868f33c80e271324f1ben_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleOZI violating eight-quark interactions as a thermometer for chiral transitionsen_US
dc.typearticleen_US
dc.identifier.doi10.1016/j.physletb.2007.11.007-
item.fulltextCom Texto completo-
item.languageiso639-1en-
item.grantfulltextopen-
crisitem.author.orcid0000-0002-2622-8789-
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais
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