Renormalizable minimal SO(10) GUT in 4D and 5D

Journal Article · Tue May 13 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2939059· OSTI ID:21143449

Fukuyama, Takeshi ^[1]

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1. Department of Physics, Ritsumeikan University, Kusatsu, Shiga, 525-8577 (Japan)

This report is a review of the present status of GUT, especially renormalizable minimal SO(10) GUT, and its future prospect. It consists of two parts. In part I, I review how the minimal renormalizable supersymmetric SO(10) GUT, an SO(10) framework with only one 10 and one 126 Higgs multiplets in the Yukawa sector, is attractive because of its high predictivity. Indeed it not only gave a consistent predictions on neutrino oscillation data but also did reasonable and interesting values for Leptogenesis, LFV, muon g-2, neutrinoless double beta decay etc. However, this model suffers from problems, apart from the small deviations from the observed values, related to running of gauge couplings and proton decay. The gauge coupling unification may be spoiled due to the presence of intermediate scales much lighter than the grand unification (GUT) scale. In addition, the gauge couplings blow up around the GUT scale because of the presence of Higgs multiplets of large representations. In order to remedy these pathologies, in part II, we extend GUT into 5D. We propose two approaches: one is to consider the warped extra dimension, using the bulk Higgs profile to explain the intermediate energy scales. Another is to use the orbifold GUT. Both approaches are complementary to each other.

• OSTI ID: 21143449
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1015; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COUPLING
DOUBLE BETA DECAY
GRAND UNIFIED THEORY
HIGGS BOSONS
HIGGS MODEL
MANY-DIMENSIONAL CALCULATIONS
MUONS
NEUTRINO OSCILLATION
PARTICLE MULTIPLETS
PROTONS
RENORMALIZATION
REVIEWS
SO-10 GROUPS
SUPERSYMMETRY