The temperature dependence of the QCD running coupling

dc.contributor.authorSteffens, F. M. [UNESP]
dc.contributor.institutionUniversidade Presbiteriana Mackenzie
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:52Z
dc.date.available2014-05-27T11:21:52Z
dc.date.issued2006-06-01
dc.description.abstractWe study the running of the QCD coupling with the momentum squared (Q 2) and the temperature scales in the high temperature limit (T > Tc), using a mass dependent renormalization scheme to build the Renormalization Group Equations. The approach used guaranty gauge invariance, through the use of the Hard Thermal Loop approximation, and independence of the vertex chosen to renormalize the coupling. In general, the dependence of the coupling with the temperature is not logarithmical, although in the region Q2 ∼ T2 the logarithm approximation is reasonable. Finally, as known from Debye screening, color charge is screened in the coupling. The number of flavors, however, is anti-screened.en
dc.description.affiliationNFC FCBEE Universidade Presbiteriana Mackenzie, Rua da Consolação 930, 01302-907, São Paulo, SP
dc.description.affiliationIFT UNESP, Rua Pamplona 145, 01405-900, São Paulo, SP
dc.description.affiliationUnespIFT UNESP, Rua Pamplona 145, 01405-900, São Paulo, SP
dc.format.extent582-585
dc.identifierhttp://dx.doi.org/10.1590/S0103-97332006000400020
dc.identifier.citationBrazilian Journal of Physics, v. 36, n. 2 B, p. 582-585, 2006.
dc.identifier.doi10.1590/S0103-97332006000400020
dc.identifier.file2-s2.0-33749506461.pdf
dc.identifier.issn0103-9733
dc.identifier.scieloS0103-97332006000400020
dc.identifier.scopus2-s2.0-33749506461
dc.identifier.urihttp://hdl.handle.net/11449/68899
dc.identifier.wosWOS:000239338500020
dc.language.isoeng
dc.relation.ispartofBrazilian Journal of Physics
dc.relation.ispartofjcr1.082
dc.relation.ispartofsjr0,276
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectFinite temperature QCD
dc.subjectRunning coupling
dc.titleThe temperature dependence of the QCD running couplingen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.scielo.br/revistas/bjp/paboutj.htm
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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