Gauge Coupling Unification with Extra Dimensions and Gravitational Scale Effects
arXiv:hep-ph/9906327 · doi:10.1016/S0550-3213(99)00816-0
Abstract
We study gauge coupling unification in the presence of extra dimensions compactified at a few TeV. Achieving unification requires a large number of gauge boson Kaluza-Klein excitations lighter than the string scale, such that the higher-dimensional gauge couplings are O(1) in string scale units. Corrections to the gauge couplings from two or more loops are about 10% or larger, hence string (or M) theory is generally expected to be strongly coupled in TeV-scale extra-dimensional scenarios. Higher-dimensional operators induced by quantum gravitational effects can shift the gauge couplings by a few percent. These effects are sufficiently large that even the minimal Standard Model, or the MSSM, allow unification at a scale in the TeV range. The strongly coupled unified theory may induce dynamical electroweak symmetry breaking.
25 pages, LaTex, 3 figures. References added
References in corpus (5)
Cited by in corpus (25)
- Bounds on Universal Extra Dimensions
- Strong Dynamics and Electroweak Symmetry Breaking
- Gauge Invariant Effective Lagrangian for Kaluza-Klein Modes
- Discrimination of Supersymmetry and Universal Extra Dimensions at Hadron Colliders
- Unitarity of Compactified Five Dimensional Yang-Mills Theory
- Collider Implications of Universal Extra Dimensions
- Unitarity of the Higher Dimensional Standard Model
- Dynamical Chiral Symmetry Breaking on a Brane in Reduced QED
- Kaluza-Klein Effects on Higgs Physics in Universal Extra Dimensions
- Self-Breaking of the Standard Model Gauge Symmetry
- An Introduction to Extra Dimensions
- Electroweak Symmetry Breaking and Extra Dimensions
- Relic abundance of dark matter in the minimal universal extra dimension model
- Collider Implications of Kaluza-Klein Excitations of the Gluons
- A Study on the Non-perturbative Existence of Yang-Mills Theories with Large Extra Dimensions
- Minimal Universal Extra Dimensions in CalcHEP/CompHEP
- Baryon number violation, baryogenesis and defects with extra dimensions
- Asymmetrical large extra dimensions
- TeV scale unification in four dimensions versus extra dimensions
- Topology in the Bulk: Gauge Field Solitons in Extra Dimensions
- Unification in models with replicated gauge groups
- Unification through extra dimensions at two loops
- Renormalization and ultraviolet sensitivity of gauge vertices in universal extra dimensions
- Adjoint bulk scalars and supersymmetric unification in the presence of extra dimensions
- Twisted Boundary Conditions and Matching to the Effective Four Dimensional Theory