Loop corrections to conformal invariance for type-I superstrings

C. G. Callan, C. Lovelace, C. R. Nappi, S. A. Yost

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


BRST anomalies arising from modular integrations can be cancelled between different genus world-sheets at the price of moving the world-sheet σ-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.

Original languageEnglish (US)
Pages (from-to)41-46
Number of pages6
JournalPhysics Letters B
Issue number1
StatePublished - May 12 1988

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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