Maximal CP violation in lepton mixing from a model with Delta(27) flavour symmetry

Autor(en)
P. M. Ferreira, Walter Grimus, Luis Lavoura, Patrick Otto Ludl
Abstrakt

We propose a simple mechanism which enforces |U_{mu j}| = | U_{tau j}| forall j = 1,2,3 in the lepton mixing matrix U. This implies maximal atmospheric neutrino mixing and a maximal CP-violating phase but does not constrain the reactor mixing angle theta_{13}. We implement the proposed mechanism in two renormalizable seesaw models which have features strongly resembling those of models based on a flavour symmetry group Delta(27). Among the predictions of the models, there is a determination, although ambiguous, of the absolute neutrino mass scale, and a stringent correlation between the absolute neutrino mass scale and the effective Majorana mass in neutrinoless double-beta decay.

Organisation(en)
Teilchenphysik
Externe Organisation(en)
Universidade de Lisboa, Universidade Técnica de Lisboa
Journal
Journal of High Energy Physics
Band
2012
Anzahl der Seiten
17
ISSN
1029-8479
DOI
https://doi.org/10.1007/JHEP09(2012)128
Publikationsdatum
2012
Peer-reviewed
Ja
ÖFOS 2012
103036 Theoretische Physik, 103034 Teilchenphysik
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/maximal-cp-violation-in-lepton-mixing-from-a-model-with-delta27-flavour-symmetry(e3f4dce5-e92d-4179-b9a3-5d87c40c37f0).html