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Renormalisation group corrections to neutrino mixing sum rules

Gehrlein, J.; Petcov, S. T.; Spinrath, M.; Titov, A. V.

Abstract (englisch): Neutrino mixing sum rules are common to a large class of models based on the (discrete) symmetry approach to lepton flavour. In this approach the neutrino mixing matrix U is assumed to have an underlying approximate symmetry form Ũν, which is dictated by, or associated with, the employed (discrete) symmetry. In such a setup the cosine of the Dirac CP-violating phase δ can be related to the three neutrino mixing angles in terms of a sum rule which depends on the symmetry form of Ũν. We consider five extensively discussed possible symmetry forms of Ũν: i) bimaximal (BM) and ii) tri-bimaximal (TBM) forms, the forms corresponding to iii) golden ratio type A (GRA) mixing, iv) golden ratio type B (GRB) mixing, and v) hexagonal (HG) mixing. For each of these forms we investigate the renormalisation group corrections to the sum rule predictions for δ in the cases of neutrino Majorana mass term generated by the Weinberg (dimension 5) operator added to i) the Standard Model, and ii) the minimal SUSY extension of the Standard Model.

Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.1007/JHEP11(2016)146
ISSN: 1029-8479, 1126-6708
URN: urn:nbn:de:swb:90-653812
KITopen ID: 1000065381
Erschienen in Journal of high energy physics
Band 2016
Heft 11
Seiten 146
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Lizenz: Dieses Werk ist lizenziert unter CC BY 4.0 International
Schlagworte CP violation; Neutrino Physics; Renormalization Group; Discrete Symmetries
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