Suppressing proton decay in the minimal SO(10) model

Area of Science:

• Particle Physics
• Supersymmetry
• Grand Unification Theories

Background:

• Minimal supersymmetric SO(10) models are successful in predicting neutrino mixings.
• Proton decay is a key prediction of many Grand Unification Theories, including SO(10).

Purpose of the Study:

• To demonstrate proton decay suppression in minimal supersymmetric SO(10) models.
• To identify a Yukawa texture consistent with particle physics data and neutrino mixing predictions.

Main Methods:

• Analysis of minimal supersymmetric SO(10) models.
• Investigating specific Yukawa textures for lepton and quark sectors.
• Fitting experimental data including masses and Cabibbo-Kobayashi-Maskawa parameters.

Main Results:

• Proton decay modes can be suppressed by a specific choice of Yukawa textures.
• The identified texture successfully fits all lepton and quark masses and Cabibbo-Kobayashi-Maskawa parameters.
• The model predicts neutrino mixing parameter U(e3) to be 0.07-0.09 and Dirac CP phase sin(delta(MNS)) to be 0.3-0.7.

Conclusions:

• A consistent framework exists within minimal supersymmetric SO(10) models to suppress proton decay.
• The proposed Yukawa texture provides a successful phenomenological model for particle physics and neutrino physics.