The KM phase in semi-realistic heterotic orbifold models
Journal Article
·
· Nuclear Physics B
OSTI ID:860287
In string-inspired semi-realistic heterotic orbifolds models with an anomalous U(1){sub X},a nonzero Kobayashi-Masakawa (KM) phase is shown to arise generically from the expectation values of complex scalar fields, which appear in nonrenormalizable quark mass couplings. Modular covariant nonrenormalizable superpotential couplings are constructed. A toy Z{sub 3} orbifold model is analyzed in some detail. Modular symmetries and orbifold selection rules are taken into account and do not lead to a cancellation of the KM phase. We also discuss attempts to obtain the KM phase solely from renormalizable interactions.
- Research Organization:
- Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Director, Office of Science. Office of High Energy andNuclear Physics. Division of High Energy Physics; National ScienceFoundation
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 860287
- Report Number(s):
- LBNL--46292
- Journal Information:
- Nuclear Physics B, Journal Name: Nuclear Physics B Journal Issue: 1-2 Vol. 595
- Country of Publication:
- United States
- Language:
- English
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