Leptonic CP problem in left-right symmetric model

Abstract

We find using the minimal left-right symmetric model that the presence of leptonic CP violation can radiatively generate a strong CP phase at the one-loop level itself, which can be beyond the current bounds established by the neutron electic dipole moment experiments. If there are no axions or unnatural cancellations, this leads to the testable prediction that leptonic CP violation must be negligibly small (Dirac phase ${\delta }_{CP}=0$ or $\pi$), in a wide and interesting region of parameter space.

Version to appear in Phys. Rev. D, Rapid Communications, April 2015

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Cited by in corpus (16)

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• Axion-mediated forces, CP violation and left-right interactions
• Fermion Masses and Mixings, Leptogenesis and Baryon Number Violation in Pati-Salam Model
• Light Sterile Neutrinos, Left-Right Symmetry, and $0\nu \beta \beta$ Decay
• Parity and the origin of neutrino mass
• Neutrino 2020: Theory Outlook
• The Type II Dirac Seesaw Portal to the mirror sector: Connecting neutrino masses and a solution to the strong CP problem
• Probing light sterile neutrinos in left-right symmetric models with displaced vertices and neutrinoless double beta decay
• P and CP solution of the strong CP puzzle
• Parity and lepton masses in the left-right symmetric model
• Semi-aligned two Higgs doublet model
• Right-Handed Leptonic Mixing and Enhancement Band in Left-Right Symmetry
• Strong CP Phase and Parity in the Hamiltonian Formalism