| Article | |
| Report number | arXiv:2003.03285 ; KCL-PH-TH/2020-10 ; CERN-TH-2020-031 ; UT-20-03 ; ACT-01-20 ; MI-TH-206, UMN-TH-3914/20 ; MI-TH-206, UMN-TH-3914/20 ; FTPI-MINN-20/04 ; IFT-UAM/CSIC-20-36 |
| Title | Proton Decay: Flipped vs Unflipped SU(5) |
| Author(s) | Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Garcia, Marcos A.G. (Madrid, IFT) ; Nagata, Natsumi (Tokyo U. ; HARC, Woodlands ; Athens Academy) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) |
| Publication | 2020-05-06 |
| Imprint | 2020-03-06 |
| Number of pages | 25 |
| Note | 25 pages, 4 figures |
| In: | JHEP 2005 (2020) 021 |
| DOI | 10.1007/JHEP05(2020)021 |
| Subject category | hep-ph ; Particle Physics - Phenomenology |
| 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 $\Gamma(p \to \pi^0 \mu^+)/\Gamma(p \to \pi^0 e^+)$, $\Gamma(p \to \pi^+ \bar{\nu})/\Gamma(p \to \pi^0 e^+)$, $\Gamma(p \to K^0 e^+)/\Gamma(p \to \pi^0 e^+)$ and $\Gamma(p \to K^0 \mu^+)/\Gamma(p \to \pi^0 \mu^+)$, and that predictions for the ratios $\Gamma(p \to \pi^0 \mu^+)/\Gamma(p \to \pi^0 e^+)$ and $\Gamma(p \to \pi^+ \bar{\nu})/\Gamma(p \to \pi^0 e^+)$ 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. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2020-2025 The Authors (License: CC-BY-4.0) |
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