Light Spin-One Particles Imply Gauge Invariance

dc.creatorBurgess, C. P.
dc.creatorLondon, David
dc.date1992-03-18
dc.date1992-03-25
dc.date.accessioned2026-07-07T08:59:44Z
dc.date.available2026-07-07T08:59:44Z
dc.descriptionRecently, calculations which consider the implications of anomalous trilinear gauge-boson couplings, both at tree-level and in loop-induced processes, have been criticized on the grounds that the lagrangians employed are not \gwk gauge invariant. We prove that, in fact, the general Lorentz-invariant and $U(1)_\em$ invariant but {\it not} $SU_L(2)\times U_Y(1)$ invariant action is equivalent to the general lagrangian in which $SU_L(2)\times U_Y(1)$ appears but is nonlinearly realized. We demonstrate this equivalence in an explicit calculation, and show how it is reconciled with loop calculations in which the different formulations can (superficially) appear to give different answers. In this sense any effective theory containing light spin-one particles is seen to be automatically gauge invariant.
dc.description19 pages, 2 figures (not included)
dc.identifierhttps://arxiv.org/abs/hep-ph/9203215
dc.identifierhttp://arxiv.org/abs/hep-ph/9203215
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/147822
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLight Spin-One Particles Imply Gauge Invariance
dc.typetext

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