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Scotogenic model for co-bimaximal mixing

  • P. M. Ferreira
  • W. Grimus
  • D. Jurčiukonis
  • L. Lavoura
Open Access
Regular Article - Theoretical Physics

Abstract

We present a scotogenic model, i.e. a one-loop neutrino mass model with dark right-handed neutrino gauge singlets and one inert dark scalar gauge doublet η, which has symmetries that lead to co-bimaximal mixing, i.e. to an atmospheric mixing angle θ 23 = 45° and to a CP -violating phase δ = ±π/2, while the mixing angle θ 13 remains arbitrary. The symmetries consist of softly broken lepton numbers L α (α = e, μ, τ ), a non-standard CP symmetry, and three \( {\mathbb{Z}}_2 \) symmetries. We indicate two possibilities for extending the model to the quark sector. Since the model has, besides η, three scalar gauge doublets, we perform a thorough discussion of its scalar sector. We demonstrate that it can accommodate a Standard Model-like scalar with mass 125 GeV, with all the other charged and neutral scalars having much higher masses.

Keywords

Discrete Symmetries Neutrino Physics 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2016

Authors and Affiliations

  • P. M. Ferreira
    • 1
    • 2
  • W. Grimus
    • 3
  • D. Jurčiukonis
    • 4
  • L. Lavoura
    • 5
  1. 1.Instituto Superior de Engenharia de Lisboa — ISELLisboaPortugal
  2. 2.Centro de Física Teórica e Computacional — FCULUniversidade de LisboaLisboaPortugal
  3. 3.Faculty of PhysicsUniversity of ViennaWienAustria
  4. 4.Institute of Theoretical Physics and AstronomyVilnius UniversityVilniusLithuania
  5. 5.CFTP, Instituto Superior TécnicoUniversidade de LisboaLisboaPortugal

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