Quantum Effects in Softly Broken Gauge Theories in Curved Space-Times

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dc.creatorBuchbinder, I. L.
dc.creatorde Berredo-Peixoto, G.
dc.creatorShapiro, I. L.
dc.date2007-03-21
dc.date.accessioned2026-07-07T11:59:45Z
dc.date.available2026-07-07T11:59:45Z
dc.descriptionThe soft breaking of gauge or other symmetries is the typical Quantum Field Theory phenomenon. In many cases one can apply the St$\ddot{\rm u}$ckelberg procedure, which means introducing some additional field or fields and restore the gauge symmetry. The original softly broken theory corresponds to a particular choice of the gauge fixing condition. In this paper we use this scheme for performing quantum calculations for some softly broken gauge theories in an arbitrary curved space-time. The following examples are treated in details: Proca field, massive QED and massive torsion coupled to fermion. Furthermore we present a qualitative discussions of the discontinuity of quantum effects in the massive spin-2 field theory, paying special attention to the similarity and differences with the massless limit in the spin-1 case.
dc.descriptionLaTeX, 13 pages, no figures
dc.identifierhttps://arxiv.org/abs/hep-th/0703189
dc.identifierhttp://arxiv.org/abs/hep-th/0703189
dc.identifierPhys.Lett.B649:454-462,2007
dc.identifierdoi:10.1016/j.physletb.2007.04.039
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206675
dc.subjectHigh Energy Physics - Theory
dc.titleQuantum Effects in Softly Broken Gauge Theories in Curved Space-Times
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