Flavour-symmetric type-II Dirac neutrino seesaw mechanism

Flavour-symmetric type-II Dirac neutrino seesaw mechanism

We propose a Standard Model extension with underlying A4 flavour symmetry where small Dirac neutrino masses arise from a Type-II seesaw mechanism. The model predicts the “golden” flavour-dependent bottom-tau mass relation, requires an inverted neutrino mass ordering and non-maximal atmospheric mixin...

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Main Authors: Cesar Bonilla, J.M. Lamprea, Eduardo Peinado, Jose W.F. Valle
Format: Article
Language:English
Published: Elsevier 2018-04-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269318301242
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spelling doaj-4cab3a824c0a4d45bd6e41b65b760cd82020-11-25T01:39:07ZengElsevierPhysics Letters B0370-26932018-04-01779257261Flavour-symmetric type-II Dirac neutrino seesaw mechanismCesar Bonilla0J.M. Lamprea1Eduardo Peinado2Jose W.F. Valle3AHEP Group, Institut de Física Corpuscular – C.S.I.C./Universitat de València, Parc Científic de Paterna, C/Catedrático José Beltrán, 2, E-46980 Paterna (Valencia), Spain; Corresponding author.Instituto de Física, Universidad Nacional Autónoma de México (UNAM), A.P. 20-364, Ciudad de México 01000, MexicoInstituto de Física, Universidad Nacional Autónoma de México (UNAM), A.P. 20-364, Ciudad de México 01000, MexicoAHEP Group, Institut de Física Corpuscular – C.S.I.C./Universitat de València, Parc Científic de Paterna, C/Catedrático José Beltrán, 2, E-46980 Paterna (Valencia), SpainWe propose a Standard Model extension with underlying A4 flavour symmetry where small Dirac neutrino masses arise from a Type-II seesaw mechanism. The model predicts the “golden” flavour-dependent bottom-tau mass relation, requires an inverted neutrino mass ordering and non-maximal atmospheric mixing angle. Using the latest neutrino oscillation global fit [1] we derive restrictions on the oscillation parameters, such as a correlation between δCP and mνlightest. Keywords: Neutrino masses and mixing, Flavour physicshttp://www.sciencedirect.com/science/article/pii/S0370269318301242
collection DOAJ
language English
format Article
sources DOAJ
author Cesar Bonilla
J.M. Lamprea
Eduardo Peinado
Jose W.F. Valle
spellingShingle Cesar Bonilla
J.M. Lamprea
Eduardo Peinado
Jose W.F. Valle
Flavour-symmetric type-II Dirac neutrino seesaw mechanism
Physics Letters B
author_facet Cesar Bonilla
J.M. Lamprea
Eduardo Peinado
Jose W.F. Valle
author_sort Cesar Bonilla
title Flavour-symmetric type-II Dirac neutrino seesaw mechanism
title_short Flavour-symmetric type-II Dirac neutrino seesaw mechanism
title_full Flavour-symmetric type-II Dirac neutrino seesaw mechanism
title_fullStr Flavour-symmetric type-II Dirac neutrino seesaw mechanism
title_full_unstemmed Flavour-symmetric type-II Dirac neutrino seesaw mechanism
title_sort flavour-symmetric type-ii dirac neutrino seesaw mechanism
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2018-04-01
description We propose a Standard Model extension with underlying A4 flavour symmetry where small Dirac neutrino masses arise from a Type-II seesaw mechanism. The model predicts the “golden” flavour-dependent bottom-tau mass relation, requires an inverted neutrino mass ordering and non-maximal atmospheric mixing angle. Using the latest neutrino oscillation global fit [1] we derive restrictions on the oscillation parameters, such as a correlation between δCP and mνlightest. Keywords: Neutrino masses and mixing, Flavour physics
url http://www.sciencedirect.com/science/article/pii/S0370269318301242
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AT jmlamprea flavoursymmetrictypeiidiracneutrinoseesawmechanism
AT eduardopeinado flavoursymmetrictypeiidiracneutrinoseesawmechanism
AT josewfvalle flavoursymmetrictypeiidiracneutrinoseesawmechanism
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