Test of Gauge Covariance of Fermion-Photon Vertex in Quenched, Massless Three Dimensional Quantum Electrodynamics
Abstract
We study the gauge covariance of the fermion-photon vertex in quenched, massless 3-dimensional quantum electrodynamics. A class of vertex Ans\"atze obtained by generalizing that proposed by Dong et al. is tested using the invariance of the photon polarization scalar under the Landau-Khalatnikov transformation.
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