Study of non-minimal SUSY SU(5) model with realistic fermion sectors

Abstract

We study a supersymmetric SU(5) model with the extra Higgs multiplets of 45+\bar 45. The unification of the gauge couplings, the fermion masses and the proton lifetime are discussed in details. The dimension-five operators mediated by different colored Higgs sector can be destructive with each other. This effect serves a way of solving the longevity of proton. We analytically analyze this destructive effect in a special limit where the mixing between the 5- and 45-plets is small. Although the theory does not hold in this special limit, it is a revelatory starting point. We can relax this limit and retain the destructive effect. In a generalized parameter space, this model is in accord with experimental results.

References in corpus (13)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Proton stability in grand unified theories, in strings, and in branes
• Nucleon Decay in the Minimal Supersymmetric $SU(5)$ Grand Unification
• Not Even Decoupling Can Save Minimal Supersymmetric SU(5)
• Effect of an RRRR dimension 5 operator on the proton decay in the minimal SU(5) SUGRA GUT model
• Proton Decay in Minimal Supersymmetric SU(5)
• Proton decay matrix elements with domain-wall fermions
• Supersymmetric Adjoint SU(5)
• The Two Loop Long Range Effect on the Proton Decay Effective Lagrangian
• Proton Stability, Dark Matter and Light Color Octet Scalars in Adjoint SU(5) Unification
• Constraints From Gauge Coupling Unification On The Scale Of Supersymmetry Breaking
• Suppression of Higgsino mediated proton decay by cancellations in GUTs and strings
• Sflavor mixing map viewed from a high scale in supersymmetric SU(5)

Cited by in corpus (3)

• A Renormalizable Supersymmetric SU(5) Model
• Predicting ${\delta }^{\text{PMNS}}$, ${\theta }_{23}^{\text{PMNS}}$ and fermion mass ratios from flavour GUTs with CSD2
• A Missing Partner Model With 24-plet Breaking SU(5)