Derivative Expansion of the Effective Action for Massless Scalar Electrodynamics in Arbitrary Gauge

Details Derivative Expansion of the Effective Action for Massless Scalar Electrodynamics in Arbitrary Gauge Derivative Expansion of the Effective Action for Massless Scalar Electrodynamics in Arbitrary Gauge

2005-09-27

arxiv.org/abs/hep-th/0509202v2

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

It is shown how operator regularization can be used to obtain an expansion of the effective action in powers of derivatives of the background field. This is applied to massless scalar electrodynamics to find the one-loop corrections to the kinetic terms associated with both the scalar and vector fields in arbitrary gauge. This allows us to examine the radiatively induced masses arising in this model.

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