Dimension-six Proton Decays in the Modified Missing Doublet SU(5) Model

Details Dimension-six Proton Decays in the Modified Missing Doublet SU(5) Model Dimension-six Proton Decays in the Modified Missing Doublet SU(5) Model

1997-10-08

arxiv.org/abs/hep-ph/9710279v1

Prog.Theor.Phys.98:1385-1390,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, Latex, 1 Postscript figures

Scientific paper

10.1143/PTP.98.1385

Dimension-five operators for nucleon decays are suppressed in the modified missing doublet (MMD) model in the supersymmetric SU(5) grand unification. We show that nonrenormalizable interactions decrease the unification scale in the MMD model which increases the nucleon decay rate of dimension-six operators by a significant amount. We find that the theoretical lower bound on the proton life time $\tau(p \to \e^+ \pi^0)$ is within the observable range at SuperKamiokande.

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