Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations

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dc.contributor.authorAguilar, A. C.
dc.contributor.authorMihara, A.
dc.contributor.authorNatale, A. A.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:07:24Z
dc.date.available2014-05-20T14:07:24Z
dc.date.issued2002-03-01
dc.description.abstractWe compare phenomenological values of the frozen QCD running coupling constant (alpha(s)) with two classes of infrared finite solutions obtained through nonperturbative Schwinger-Dyson equations. We use these same solutions with frozen coupling constants as well as their respective nonperturbative gluon propagators to compute the QCD prediction for the asymptotic pion form factor. Agreement between theory and experiment on alpha(s)(0) and F (pi)(Q(2)) is found only for one of the Schwinger-Dyson equation solutions.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.format.extent6
dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.65.054011
dc.identifier.citationPhysical Review D. College Pk: American Physical Soc, v. 65, n. 5, 6 p., 2002.
dc.identifier.doi10.1103/PhysRevD.65.054011
dc.identifier.fileWOS000174548000043.pdf
dc.identifier.issn0556-2821
dc.identifier.urihttp://hdl.handle.net/11449/23655
dc.identifier.wosWOS:000174548000043
dc.language.isoeng
dc.publisherAmerican Physical Soc
dc.relation.ispartofPhysical Review D
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleFreezing of the QCD coupling constant and solutions of Schwinger-Dyson equationsen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmerican Physical Soc
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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