A dynamical gluon mass solution in a coupled system of the Schwinger-Dyson equations

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAguilar, Arlene Cristina
dc.creatorNatale, Adriano Antonio
dc.date2014-05-27T11:21:07Z
dc.date2016-10-25T18:19:45Z
dc.date2014-05-27T11:21:07Z
dc.date2016-10-25T18:19:45Z
dc.date2004-08-01
dc.date.accessioned2017-04-06T01:09:52Z
dc.date.available2017-04-06T01:09:52Z
dc.identifierJournal of High Energy Physics, v. 8, n. 8, p. 1529-1547, 2004.
dc.identifier1029-8479
dc.identifierhttp://hdl.handle.net/11449/67813
dc.identifierhttp://acervodigital.unesp.br/handle/11449/67813
dc.identifier10.1088/1126-6708/2004/08/057
dc.identifierWOS:000224350200057
dc.identifier2-s2.0-22144486952
dc.identifierhttp://dx.doi.org/10.1088/1126-6708/2004/08/057
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/889222
dc.descriptionWe study numerically the Schwinger-Dyson equations for the coupled system of gluon and ghost propagators in the Landau gauge and in the case of pure gauge QCD. We show that a dynamical mass for the gluon propagator arises as a solution while the ghost propagator develops an enhanced behavior in the infrared regime of QCD. Simple analytical expressions are proposed for the propagators, and the mass dependency on the ΛQCD scale and its perturbative scaling are studied. We discuss the implications of our results for the infrared behavior of the coupling constant, which, according to fits for the propagators infrared behavior, seems to indicate that α s(q2) → 0 as q2 → 0. © SISSA/ISAS 2004.
dc.languageeng
dc.relationJournal of High Energy Physics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectNonperturbative Effects
dc.subjectQCD
dc.titleA dynamical gluon mass solution in a coupled system of the Schwinger-Dyson equations
dc.typeOtro


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