New Stringy Instanton Effects
Journal Article
·
· AIP Conference Proceedings
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104-6396 (United States)
D-brane instantons can generate open string couplings in the superpotential which violate global abelian symmetries and are therefore perturbatively forbidden. After discussing the main ingredients, focussing for concretenes on Type IIA orientifold compactifications, we exemplify the generation of perturbatively forbidden Yukawa couplings as well as Majorana mass terms for right-handed neutrinos in SU(5) GUT-like models.
- OSTI ID:
- 21039336
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 957; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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