Journal
PHYSICAL REVIEW D
Volume 106, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.106.065022
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This article investigates a deformation of the Abelian Higgs Kibble model induced by a dimension-six derivative operator. A new differential equation is established to determine the dependence of the vertex functional on the coupling z of the dimension-six operator. In this formulation, where the physical mode is described by a gauge-invariant field, functional identities of the theory are studied. The model, despite being nonpower-counting renormalizable, depends on a finite number of physical parameters when z is not equal to zero.
A deformation of the Abelian Higgs Kibble model induced by a dimension-six derivative operator is studied. A novel differential equation is established fixing the dependence of the vertex functional on the coupling z of the dimension-six operator in terms of amplitudes at z 1/4 0 (those of the power-counting renormalizable Higgs-Kibble model). The latter equation holds in a formalism where the physical mode is described by a gauge-invariant field. The functional identities of the theory in this formalism are studied. In particular, we show that the Slavnov-Taylor identities separately hold true at each order in the number of internal propagators of the gauge-invariant scalar. Despite being nonpower-counting renormalizable, the model at z not equal 0 depends on a finite number of physical parameters.
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