Scotogenic model for co-bimaximal mixing

Author(s)
P. M. Ferreira, W. Grimus, D. Jurciukonis, L. Lavoura
Abstract

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 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.

Organisation(s)
Particle Physics
External organisation(s)
Instituto Politécnico de Lisboa, Universidade de Lisboa, Vilnius University (VU)
Journal
Journal of High Energy Physics
Volume
2016
No. of pages
23
ISSN
1029-8479
DOI
https://doi.org/10.1007/JHEP07(2016)010
Publication date
07-2016
Peer reviewed
Yes
Austrian Fields of Science 2012
103012 High energy physics
Keywords
ASJC Scopus subject areas
Nuclear and High Energy Physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/scotogenic-model-for-cobimaximal-mixing(ba6aeb30-bed8-461b-a57f-3796c9f8c06d).html