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Gluon mass and freezing of the QCD coupling

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dc.contributor.author	Aguilar, Arlene Cristina
dc.contributor.author	Papavassiliou, Joannis
dc.date.accessioned	2015-04-22T12:03:36Z
dc.date.available	2015-04-22T12:03:36Z
dc.date.issued	2008
dc.identifier.citation	Aguilar, Arlene Cristina Papavassiliou, Joannis 2008 Gluon mass and freezing of the QCD coupling Journal of physics. Conference series 110 7 022040
dc.identifier.uri	http://hdl.handle.net/10550/43274
dc.description.abstract	Infrared finite solutions for the gluon propagator of pure QCD are obtained from the gauge-invariant non-linear Schwinger-Dyson equation formulated in the Feynman gauge of the background field method. These solutions may be fitted using a massive propagator, with the special characteristic that the effective mass employed drops asymptotically as the inverse square of the momentum transfer, in agreement with general operator-product expansion arguments. Due to the presence of the dynamical gluon mass the strong effective charge extracted from these solutions freezes at a finite value, giving rise to an infrared fixed point for QCD.
dc.language.iso	eng
dc.relation.ispartof	Journal of physics. Conference series , 2008, vol. 110, num. 7, p. 022040
dc.subject	Física
dc.title	Gluon mass and freezing of the QCD coupling
dc.type	journal article	es_ES
dc.date.updated	2015-04-22T12:03:36Z
dc.identifier.doi	10.1088/1742-6596/110/2/022040
dc.identifier.idgrec	091161
dc.rights.accessRights	open access	es_ES