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BRS Invariance of Unoriented Open-Closed String Field Theory

Tsuguhiko Asakawa, Taichiro Kugo, Tomohiko Takahashi

hep-tharXiv:hep-th/9807066

Abstract

We present the full action for the unoriented open-closed string field theory which is based on the α=p+ HIKKO type vertices. The BRS invariance of the action is proved up to the terms which are expected to cancel the anomalous one-loop contributions. This implies that the system is invariant under the gauge transformations with open and closed string field parameters up to the anomalies.

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