The Problem of α_s in Supersymmetric Unified Theories

Abstract

It is shown that in SO(10) there is a general connection between the suppression of higgsino mediated proton decay and the value of ${\alpha }_s$. However, agreement with the experimental value of ${\alpha }_s$ can be obtained if there are relatively large negative threshold corrections to ${\alpha }_s$ coming from superheavy split multiplets. It is shown that such split multiplets can arise in SO(10) without fine-tuning of parameters.

14 pages LaTex, no figures

References in corpus (2)

• Minimal SO(10) Unification
• Gauge-mediated SUSY Breaking with a Gluino LSP

Cited by in corpus (5)

• Construction of a Minimal Higgs SO(10) SUSY GUT Model
• Focus Point Supersymmetry: Proton Decay, Flavor and CP Violation, and the Higgs Boson Mass
• Bimaximal Neutrino Mixings from Lopsided Mass Matrices
• Eliminating the d=5 proton decay operators from SUSY GUTs
• Effects of Large CP Phases on the Proton Lifetime in Supersymmetric Unification