Proton decay: flipped vs. unflipped SU(5)

John Ellis, Marcos A.G. Garcia, Natsumi Nagata, Dimitri V. Nanopoulos, Keith A. Olive

Research output: Contribution to journalArticle

Abstract

We analyze nucleon decay modes in a no-scale supersymmetric flipped SU(5) GUT model, and contrast them with the predictions for proton decays via dimension-6 operators in a standard unflipped supersymmetric SU(5) GUT model. We find that these GUT models make very different predictions for the ratios Γ(p → π0μ+)/Γ(p → π0e+), Γ(p →π+ν¯)/Γ(p → π0e+), Γ(p → K0e+)/Γ(p → π0e+) and Γ(p → K0μ+)/Γ(p → π0μ+), and that predictions for the ratios Γ(p → π0μ+)/Γ(p → π0e+) and Γ(p →π+ν¯)/Γ(p → π0e+) also differ in variants of the flipped SU(5) model with normal- or inverse-ordered light neutrino masses. Upcoming large neutrino experiments may have interesting opportunities to explore both GUT and flavour physics in proton and neutron decays.

Original languageEnglish (US)
Article number21
JournalJournal of High Energy Physics
Volume2020
Issue number5
DOIs
StatePublished - May 1 2020

Keywords

  • Supersymmetry Phenomenology

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    Ellis, J., Garcia, M. A. G., Nagata, N., Nanopoulos, D. V., & Olive, K. A. (2020). Proton decay: flipped vs. unflipped SU(5). Journal of High Energy Physics, 2020(5), [21]. https://doi.org/10.1007/JHEP05(2020)021