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Background gauge invariance in the antifield formalism for theories with open gauge algebras

Kostas Skenderis

hep-tharXiv:hep-th/9410116

Abstract

We show that any BRST invariant quantum action with open or closed gauge algebra has a corresponding local background gauge invariance. If the BRST symmetry is anomalous, but the anomaly can be removed in the antifield formalism, then the effective action possesses a local background gauge invariance. The presence of antifields (BRST sources) is necessary. As an example we analyze chiral W3 gravity.

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