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Neutrino mixing and leptonic CP violation from S 4 flavour and generalised CP symmetries
We consider a class of models of neutrino mixing with S4 lepton flavour symmetry combined with a generalised CP symmetry, which are broken to residual Z2 and Z2 × HCPν symmetries in the charged lepton and neutrino sectors, respectively, HCPν being a remnant CP symmetry of the neutrino Majorana mass...
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Published in: | The journal of high energy physics 2017-12, Vol.2017 (12), p.1-57 |
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container_issue | 12 |
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container_title | The journal of high energy physics |
container_volume | 2017 |
creator | Penedo, J T Petcov, ST Titov, A V |
description | We consider a class of models of neutrino mixing with S4 lepton flavour symmetry combined with a generalised CP symmetry, which are broken to residual Z2 and Z2 × HCPν symmetries in the charged lepton and neutrino sectors, respectively, HCPν being a remnant CP symmetry of the neutrino Majorana mass term. In this set-up the neutrino mixing angles and CP violation (CPV) phases of the neutrino mixing matrix depend on three real parameters — two angles and a phase. We classify all phenomenologically viable mixing patterns and derive predictions for the Dirac and Majorana CPV phases. Further, we use the results obtained on the neutrino mixing angles and leptonic CPV phases to derive predictions for the effective Majorana mass in neutrinoless double beta decay. |
doi_str_mv | 10.1007/JHEP12(2017)022 |
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In this set-up the neutrino mixing angles and CP violation (CPV) phases of the neutrino mixing matrix depend on three real parameters — two angles and a phase. We classify all phenomenologically viable mixing patterns and derive predictions for the Dirac and Majorana CPV phases. Further, we use the results obtained on the neutrino mixing angles and leptonic CPV phases to derive predictions for the effective Majorana mass in neutrinoless double beta decay.</description><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP12(2017)022</identifier><language>eng</language><publisher>Heidelberg: Springer Nature B.V</publisher><subject>Beta decay ; CP violation ; Discrete Symmetries ; Flavor (particle physics) ; High energy physics ; Leptons ; Neutrino Physics ; Neutrinos ; Phases ; Symmetry</subject><ispartof>The journal of high energy physics, 2017-12, Vol.2017 (12), p.1-57</ispartof><rights>Journal of High Energy Physics is a copyright of Springer, (2017). 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subjects | Beta decay CP violation Discrete Symmetries Flavor (particle physics) High energy physics Leptons Neutrino Physics Neutrinos Phases Symmetry |
title | Neutrino mixing and leptonic CP violation from S 4 flavour and generalised CP symmetries |
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