Gauge Coupling Unification in Six Dimensions
arXiv:hep-ph/0611196 · doi:10.1103/PhysRevD.75.065009 10.1103/PhysRevD.76.029902
Abstract
We compute the one-loop gauge couplings in six-dimensional non-Abelian gauge theories on the T^2/Z_2 orbifold with general GUT breaking boundary conditions. For concreteness, we apply the obtained general formulae to the gauge coupling running in a 6D SO(10) orbifold GUT where the GUT group is broken down to the standard model gauge group up to an extra U(1). We find that the one-loop corrections depend on the parity matrices encoding the orbifold boundary conditions as well as the volume and shape moduli of extra dimensions. When the U(1) is broken by the VEV of bulk singlets, the accompanying extra color triplets also affect the unification of the gauge couplings. In this case, the B-L breaking scale compatible with the gauge coupling unification is sensitive to the change of the compactification scales.
32 pages, 4 figures, errors in the KK sums changing the consequent discussion on the 5D limit corrected
References in corpus (12)
- Big-Bang nucleosynthesis (Particle Data Group mini-review)
- The Cosmological Parameters 2006
- Supersymmetric Standard Model from the Heterotic String
- Renormalization of Supersymmetric Gauge Theories on Orbifolds: Brane Gauge Couplings and Higher Derivative Operators
- Flavour structure and proton decay in 6D orbifold GUTs
- Higher derivatives and brane-localised kinetic terms in gauge theories on orbifolds
- Gauge Unification in Extra Dimensions: Power Corrections vs. Higher-Dimension Operators
- Quantum Corrections to Non-Abelian SUSY Theories on Orbifolds
- Classical running of neutrino masses from six dimensions
- Gauge coupling Unification and SO(10) in 5D
- Gauge Coupling Unification in a 6D SO(10) Orbifold GUT
- One-loop Gauge Couplings in Orbifold Field Theories
Cited by in corpus (5)
- E6 inspired SUSY models with exact custodial symmetry
- E6 inspired composite Higgs model
- Kaluza-Klein masses in nonprime orbifolds: Z(12-I) compactification and threshold correction
- CP Violation and Neutrino Masses and Mixings from Quark Mass Hierarchies
- Threshold effects near the compactification scale for gauge couplings on orbifolds