Phenomenological aspects of heterotic orbifold models at one loop
We provide a detailed study of the phenomenology of orbifold compactifications of the heterotic string within the context of supergravity effective theories. Our investigation focuses on those models where the soft Lagrangian is dominated by loop contributions to the various soft supersymmetry breaking parameters. Such models typically predict non-universal soft masses and are thus significantly different from minimal supergravity and other universal models. We consider the pattern of masses that are governed by these soft terms and investigate the implications of certain indirect constraints on supersymmetric models, such as flavor-changing neutral currents, the anomalous magnetic moment of the muon and the density of thermal relic neutralinos. These string-motivated models show novel behavior that interpolates between the phenomenology of unified supergravity models and models dominated by the superconformal anomaly.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics; National Science Foundation Grant PHY-00988-40
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 842733
- Report Number(s):
- LBNL-53419; R&D Project: PTHOPS; TRN: US0503667
- Country of Publication:
- United States
- Language:
- English
Similar Records
Heterotic orbifolds
1-loop effects in 4-d supergravity generated by heterotic strings on asymmetric orbifolds