Flavor changing nucleon decay

Abstract

Recent discovery of neutrino large mixings implies the large mixings in the diagonalizing matrices of $\bar{5}$ fields in $SU(5)$ grand unified theory (GUT), while the diagonalizing matrices of $10$ fields of $SU(5)$ are expected to have small mixings like Cabibbo-Kobayashi-Maskawa matrix. We calculate the predictions of flavor changing nucleon decays (FCND) in $SU(5)$, $SO(10)$, and $E_6$ GUT models which have the above features for mixings. We found that FCND can be the main decay mode especially for GUT with higher rank unification group. Recent report for $P\to {\pi }^0{\mu }^{+}$ process implies $E_6$ or $SO(10)$ GUT if the signal is from the nucleon decay.

5 pages, 4 figures v2:references are added v3:references, figures and texts are improved v4:final version to be published in PLB

References in corpus (6)

• Observation of electron-antineutrino disappearance at Daya Bay
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Improved Measurement of Electron Antineutrino Disappearance at Daya Bay
• Search for Proton Decay via $p\to e^{+}{\pi }^0$ and $p\to {\mu }^{+}{\pi }^0$ in 0.31 megaton$\cdot$years exposure of the Super-Kamiokande Water Cherenkov Detector
• Search for Nucleon Decay into Charged Anti-lepton plus Meson in Super-Kamiokande I and II
• Review of Nucleon Decay Searches at Super-Kamiokande

Cited by in corpus (7)

• Search for proton decay via $p\to e^{+}{\pi }^0$ and $p\to {\mu }^{+}{\pi }^0$ with an enlarged fiducial volume in Super-Kamiokande I-IV
• $SU(3{)}_C\times SU(2{)}_L\times U(1{)}_Y\left(\times U(1{)}_X\right)$ as a symmetry of division algebraic ladder operators
• Supersymmetric Proton Decay Revisited
• Proton Decay: Flipped vs Unflipped SU(5)
• Proton Decay and Axion Dark Matter in SO(10) Grand Unification via Minimal Left-Right Symmetry
• Toward Realistic Gauge-Higgs Grand Unification
• SUSY threshold corrections to quark and lepton mixing inspired by $SO(10)$ GUT models