World-sheet instantons and the Peccei-Quinn symmetry

X. G. Wen, Edward Witten

Research output: Contribution to journalArticlepeer-review

108 Scopus citations


It is shown that world-sheets violate the Peccie-Quinn symmetries associated with some of the axions that arise in superstring compactification. In the case of unbroken low-energy supersymmetry, the Peccie-Quinn violating operators that arise are D terms of dimension six. One remaining axion is unaffected.

Original languageEnglish (US)
Pages (from-to)397-401
Number of pages5
JournalPhysics Letters B
Issue number4
StatePublished - Jan 23 1986

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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