Abstract
We discuss the complete set of one-loop triangle graphs involving the Yang-Mills gauge connection, the Kähler connection and the σ-model coordinate connection in the effective field theory of (2, 2) symmetric Z N orbifolds. That is, we discuss pure gauge, pure Kähler and pure σ-model coordinate anomalies as well as the mixed anomalies, such as Kähler-gauge, some of which have been discussed elsewhere. We propose a mechanism for restoring both Kähler and σ-model coordinate symmetry based upon the introduction of two types of counterterms. Finally, we enlarge the σ-model generalization of the Green-Schwarz mechanism to allow the removal of the universal parts of a wider class of anomalies than those previously discussed.
Published Version
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