Gauge threshold corrections for local type-IIB/F-theory GUTs
- Rudolf Peierls Centre for Theoretical Physics, 1 Keble Road, Oxford, OX1 3NP (United Kingdom)
We study gauge threshold corrections for local grand unified theory models in IIB/F-theory. Consistency with holomorphy requirements of supergravity and the Kaplunovsky-Louis formula implies that the unification scale is enhanced by the bulk radius R from the string scale to M{sub X}=RM{sub S}. We argue that the stringy interpretation of this is via a locally uncanceled tadpole sourced by the hypercharge flux. This sources closed string modes propagating into the bulk--equivalently open string gauge coupling running up to the winding scale M{sub X}. The enhancement to RM{sub s} is tied to grand unified theory breaking by a globally trivial hypercharge flux and will occur in all models realizing this mechanism.
- OSTI ID:
- 21313418
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 80, Issue 10; Other Information: DOI: 10.1103/PhysRevD.80.106004; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Astrophysical implications of a visible dark matter sector from a custodially warped GUT
Weakly-interacting massive particles in non-supersymmetric SO(10) grand unified models