High Energy Physics - Theory, abstract

Submitted: Jan. 1988

Loop Corrections to Conformal Invariance for Type-I Superstrings

Authors: C.G. Callan, C. Lovelace, C.R. Nappi and S.A. Yost
Comments: 14 pgs
Journal-ref: Phys. Lett. 206B (1988) 41

BRST anomalies arising from modular integrations can be cancelled between different genus worldsheets at the price of moving the worldsheet sigma model away from its conformal fixed point. We have fully implemented this procedure for the lowest-loop corrections to the type I superstring. The associated conformal invariance violations are responsible for important corrections to the background field equations, including both the coupling of the gauge field to gravity and the anomaly-cancelling interactions of the antisymmetric tensor field.

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