Observable proton decay and gauge coupling unification in the improved missing doublet SU(5) model

Abstract

We investigate the possibility of observable proton decay within the improved missing doublet model (IMDM75), which utilizes a Higgs in 75 representation for $SU(5)$ gauge symmetry breaking. The realization of observable proton decay in IMDM75 is made feasible primarily due to chirality nonflipping color-triplet mediation, while chirality flipping mediation is adequately suppressed. Our predictions suggest a range of proton lifetimes between $10^{34}-10^{36}$ yr, which can be observed in upcoming experiments such as Hyper-K and DUNE, for a corresponding range of color-triplet mass parameter $M_T$ in the order of $10^{11}-10^{14}$GeV. IMDM75 is shown to offer unique predictions for branching ratios when compared to other grand unified theory models. Finally, a realization of successful gauge coupling unification is achieved, even with the presence of particles at intermediate scales.

arXiv comment13 pages, 13 figures

References in corpus (28)

• Neutrino Physics with JUNO
• Nucleon Decay in the Minimal Supersymmetric $SU(5)$ Grand Unification
• Fermion masses, neutrino oscillations, and proton decay in the light of SuperKamiokande
• 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
• Improved lattice computation of proton decay matrix elements
• Search for Proton Decay via $p\to \nu K^{+}$ using 260 kiloton$\cdot$year data of Super-Kamiokande
• From Minimal to Realistic Supersymmetric SU(5) Grand Unification
• Search for nucleon decay via modes favored by supersymmetric grand unification models in Super-Kamiokande-I
• Decoupling Can Revive Minimal Supersymmetric SU(5)
• Suggested new modes in supersymmetric proton decay
• A Search for Nucleon Decay via $n\to \bar{\nu }{\pi }^0$ and $p\to \bar{\nu }{\pi }^{+}$ in Super-Kamiokande
• Suppression of Proton Decay in the Missing-Partner Model for Supersymmetric SU(5) GUT
• Anomalous U(1) symmetry and missing doublet SU(5) model
• Sfermion Flavor and Proton Decay in High-Scale Supersymmetry
• Search for Proton Decay into Muon plus Neutral Kaon in Super-Kamiokande I, II, and III
• Supersymmetric Proton Decay Revisited
• Towards predictive flavour models in SUSY SU(5) GUTs with doublet-triplet splitting
• Proton Decay: Flipped vs Unflipped SU(5)
• Threshold Corrections to Dimension-six Proton Decay Operators in Non-minimal SUSY SU(5) GUTs
• Observable Proton Decay in Flipped SU(5)
• Generic Gravitational Corrections to Gauge Couplings in SUSY SU(5) GUTs
• A new approach to gauge coupling unification and proton decay
• Non-supersymmetric SO(10) models with Gauge and Yukawa coupling unification
• Realistic Inflation in No-Scale $U(1{)}_R$ Symmetric Flipped $SU(5)$
• Upper Limit on the Proton Lifetime in Minimal Supersymetric SU(5)
• Proton Decay in Supersymmetric $SU(4{)}_c\times SU(2{)}_L\times SU(2{)}_R$
• Dimension-six Proton Decays in the Modified Missing Doublet SU(5) Model
• Enhanced $\Gamma (p\to K^0{\mu }^{+})/\Gamma (p\to K^{+}{\bar{\nu }}_{\mu })$ as a Signature of Minimal Renormalizable SUSY $SO(10)$ GUT

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