B-L Violating Proton Decay Modes and New Baryogenesis Scenario in SO(10)

Abstract

We show that grand unified theories based on SO(10) generate quite naturally baryon number violating dimension seven operators that violate (B-L), and lead to novel nucleon decay modes such as n \to e^-K^+, e^- π^+ and p \to νπ^+. We find that in two-step breaking schemes of non-supersymmetric SO(10), the partial lifetimes for these modes can be within reach of experiments. The interactions responsible for these decay modes also provide a new way to understand the origin of matter in the universe via the decays of GUT scale scalar bosons of SO(10). Their (B-L)-violating nature guarantees that the GUT scale induced baryon asymmetry is not washed out by the electroweak sphaleron interactions. In minimal SO(10) models this asymmetry is closely tied to the masses of quarks, leptons and the neutrinos.

To be published in Phys. Rev. Lett., 9 pages. arXiv admin note: text overlap with arXiv:1203.5544

References in corpus (3)

• Observation of electron-antineutrino disappearance at Daya Bay
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Fermion masses and mixings in SO(10) models and the neutrino challenge to supersymmetric grand unified theories

Cited by in corpus (33)

• Extending the Standard Model Effective Field Theory with the Complete Set of Dimension-7 Operators
• Dimension Seven Operators in Standard Model with Right handed Neutrinos
• S_4 Flavored CP Symmetry for Neutrinos
• A Minimal Non-Supersymmetric $SO(10)$ Model: Gauge Coupling Unification, Proton Decay and Fermion masses
• A TeV Scale Model for Baryon and Lepton Number Violation and Resonant Baryogenesis
• Light color octet scalars in the minimal SO(10) grand unification
• Higgs Uncovering Light Scalar Remnants of High Scale Matter Unification
• Alternative formulation of left-right symmetry with $B-L$ conservation and purely Dirac neutrinos
• Proton decay and light sterile neutrinos
• Baryon-Number-Violating Nucleon and Dinucleon Decays in a Model with Large Extra Dimensions
• SO(10) GUT in Four and Five Dimensions: A Review
• Connecting Radiative Neutrino Mass, Neutron-Antineutron Oscillation, Proton Decay, and Leptogenesis through Dark Matter
• Proton decay at 1-loop
• Proton decay and new contribution to neutrino-less double beta decay in SO(10) with low-mass Z-prime boson, observable n-nbar oscillation, lepton flavor violation, and rare kaon decay
• Determining Majorana Nature of Neutrino from Nucleon Decays and n-nbar oscillations
• From Old Symmetries to New Symmetries: Quarks, Leptons and B-L
• An Analysis of B-L=-2 Operators from Matter-Higgs Interactions in a Class of Supersymmetric SO(10) Models
• Sensitivity to light weakly-coupled new physics at the precision frontier
• $B-L$ violating nucleon decays as a probe of leptoquarks and implications for baryogenesis
• Fermionic decay of a massive scalar in the early Universe
• Baryogenesis in the Standard Model and its Supersymmetric Extension
• Limits on $R$-parity Violation in High Scale Supersymmetry
• High-scale baryogenesis with testable neutron-antineutron oscillation and dark matter
• Spectrum of colour sextet scalars in realistic SO(10) GUT
• High Energy Physics and Cosmology at the Unification Frontier: Opportunities and Challenges in the coming years
• Neutrino masses and proton decay in SO(10)
• Syndetic Extension of Baryon and Lepton Numbers: Proton Decay and Long-Lived Dark Matter
• On the Seesaw Scale in Supersymmetric SO(10) Models
• A Stronger Case for Superunification Post Higgs Boson Discovery
• Search for baryon and lepton number violating decays of ${\Xi }^0$ hyperons
• Effective Sextic Superpotential and $B-L$ violation in NMSGUT
• Constraining scalars of $16_H$ through proton decays in non-renormalisable $SO(10)$ models
• Symmetry Breaking and Proton Decay in Spectral Pati-Salam Model