Scotogenic model for co-bimaximal mixing

P. M. Ferreira; W. Grimus; D. Jurciukonis; L. Lavoura

doi:10.1007/JHEP07(2016)010

Scotogenic model for co-bimaximal mixing

P. M. Ferreira (Corresponding author), W. Grimus, D. Jurciukonis, L. Lavoura

Particle Physics

Publications: Contribution to journal › Article › Peer Reviewed

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.

Original language	English
Article number	10
Number of pages	23
Journal	Journal of High Energy Physics
Volume	2016
Issue number	7
DOIs	https://doi.org/10.1007/JHEP07(2016)010
Publication status	Published - 4 Jul 2016

Funding

We thank Igor P. Ivanov for helpful discussions concerning the scalar potential and Kristjan Kannike for valuable help in the derivation of the conditions (4.13). D.J. thanks the Lithuanian Academy of Sciences for support through the project DaFi2016. The work of L.L. is supported by the Portuguese Fundacao para, a Ciencia e a Tecnologia through the projects CERN/FIS-NUC/0010/2015 and UID/FIS/00777/2013; those projects are partially funded through POCTI (FEDER), COMPETE, QREN, and the European Union.

Austrian Fields of Science 2012

103012 High energy physics

Keywords

Discrete Symmetries
Neutrino Physics
SYMMETRY

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10.1007/JHEP07(2016)010Licence: CC BY 4.0

http://phaidra.univie.ac.at/o:925412Licence: CC BY 4.0

Cite this

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title = "Scotogenic model for co-bimaximal mixing",

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. ",

keywords = "Discrete Symmetries, Neutrino Physics, SYMMETRY",

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T1 - Scotogenic model for co-bimaximal mixing

AU - Ferreira, P. M.

AU - Grimus, W.

AU - Jurciukonis, D.

AU - Lavoura, L.

PY - 2016/7/4

Y1 - 2016/7/4

N2 - 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.

AB - 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.

KW - Discrete Symmetries

KW - Neutrino Physics

KW - SYMMETRY

UR - http://arxiv.org/abs/1604.07777

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DO - 10.1007/JHEP07(2016)010

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JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 10

ER -

Scotogenic model for co-bimaximal mixing

Abstract

Funding

Austrian Fields of Science 2012

Keywords

Access to Document

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