Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-08-22
Phys.Rev.D65:085036,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, latex, to appear in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.65.085036
We consider the scenario where all the couplings in the theory are strong at the cut-off scale, in the context of higher dimensional grand unified field theories where the unified gauge symmetry is broken by an orbifold compactification. In this scenario, the non-calculable correction to gauge unification from unknown ultraviolet physics is naturally suppressed by the large volume of the extra dimension, and the threshold correction is dominated by a calculable contribution from Kaluza-Klein towers that gives the values for \sin^2\theta_w and \alpha_s in good agreement with low-energy data. The threshold correction is reliably estimated despite the fact that the theory is strongly coupled at the cut-off scale. A realistic 5d supersymmetric SU(5) model is presented as an example, where rapid d=6 proton decay is avoided by putting the first generation matter in the 5d bulk.
No associations
LandOfFree
Strongly Coupled Grand Unification in Higher Dimensions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Strongly Coupled Grand Unification in Higher Dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strongly Coupled Grand Unification in Higher Dimensions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-189966