Gauge Invariance in Nonlocal Regularized QED

Details Gauge Invariance in Nonlocal Regularized QED Gauge Invariance in Nonlocal Regularized QED

1993-07-13

arxiv.org/abs/hep-th/9307089v1

Physics

High Energy Physics

High Energy Physics - Theory

24 Pages of RevTex-with 5 figures generated using Feynman.

Scientific paper

The existence of the invariant measure in nonlocal regularized actions is discussed. It is shown that the measure for nonlocally regularized QED, as presented in\cite{Moff-Wood}, exists to all orders, and is precisely what is required to maintain gauge invariance at one loop and guarantees perturbative unitarity. We also demonstrate how the given procedure breaks down in anomalous theories, and discuss its generalization to other actions.

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