A Generalized Gauge Invariant Regularization of the Schwinger Model
arXiv:hep-th/9310146 · doi:10.1103/PhysRevD.50.4183
Abstract
The Schwinger model is studied with a new one - parameter class of gauge invariant regularizations that generalizes the usual point - splitting or Fujikawa schemes. The spectrum is found to be qualitatively unchanged, except for a limiting value of the regularizing parameter, where free fermions appear in the spectrum.
16 pages, SINP/TNP/93-18