Suppressing Proton Decay by Cancellation in S_4 Flavor Symmetric Extra U(1) Model

Abstract

We consider proton stability based on E_6 inspired extra U(1) model with S_4 flavor symmetry. In this model, a long life time of proton is realized by the flavor symmetry. One of the interesting effects of flavor symmetry is that the proton decay widths of p -> mu^+, X are suppressed by cancellation. This suppression mechanism is important in the case that Yukawa coupling constants are hierarchical. Our model predicts p -> e^+, K^0 has larger decay width than that of p -> mu^+, K^0.

arXiv comment16 pages, 5 tables, and 1 figure; version accepted for publication in Progress of Theoretical Physics. arXiv admin note: text overlap with arXiv:1111.1095

References in corpus (10)

• Observation of electron-antineutrino disappearance at Daya Bay
• Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment
• Indication for the disappearance of reactor electron antineutrinos in the Double Chooz experiment
• Global status of neutrino oscillation parameters after Neutrino-2012
• Updated Values of Running Quark and Lepton Masses
• Radiative Symmetry Breaking in a Supersymmetric Model with an Extra $U(1)$
• Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Low-Scale Leptogenesis and the Domain Wall Problem in Models with Discrete Flavor Symmetries
• S_4 x Z_2 Flavor Symmetry in Supersymmetric Extra U(1) Model
• Cancellation Mechanism of FCNCs in S_4 x Z_2 Flavor Symmetric Extra U(1) Model

Cited by in corpus (1)

• Phenomenology of S_4 Flavor Symmetric extra U(1) model