The A4, S4 and A5 flavor symmetries in light of data on neutrino mixing

Petcov, S.T.; Titov, A.V.

doi:10.1142/s0217751x18440244

The A4, S4 and A5 flavor symmetries in light of data on neutrino mixing

Petcov, S.T.; Titov, A.V.

Authors

S.T. Petcov

A.V. Titov

Abstract

We consider the A4, S4 and A5 discrete lepton flavor symmetries broken down to nontrivial residual symmetries in the charged lepton and neutrino sectors in such a way that at least one of them is a Z2. Such symmetry breaking patterns lead to predictions for some of the three neutrino mixing angles and/or the Dirac CP violation phase δ of the neutrino mixing matrix. First, we perform a statistical analysis of these predictions, which uses as input the latest global data on the neutrino mixing parameters. We find 14 phenomenologically viable cases. Further, we assess the viability of these cases taking into account the prospective uncertainties in the determination of the mixing angles, planned to be achieved in current and future neutrino oscillation experiments. We find that only six cases would be compatible with the assumed prospective data. We show that this number will be further reduced by a precision measurement of δ.

Citation

Petcov, S., & Titov, A. (2018). The A4, S4 and A5 flavor symmetries in light of data on neutrino mixing. International Journal of Modern Physics A, 33(31), Article 1844024. https://doi.org/10.1142/s0217751x18440244

Journal Article Type	Article
Online Publication Date	Oct 25, 2018
Publication Date	Oct 25, 2018
Deposit Date	Jan 17, 2019
Publicly Available Date	Nov 10, 2019
Journal	International Journal of Modern Physics A
Print ISSN	0217-751X
Publisher	World Scientific Publishing
Peer Reviewed	Peer Reviewed
Volume	33
Issue	31
Article Number	1844024
DOI	https://doi.org/10.1142/s0217751x18440244

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Copyright Statement
Petcov, S. T. & Titov, A. V. (2018). The A4, S4 and A5 flavor symmetries in light of data on neutrino mixing. International Journal of Modern Physics A 33(31): 1844024 10.1142/S0217751X18440244 © 2018 World Scientific Publishing Company. https://www.worldscientific.com/worldscinet/ijmpa