DISCRETE 2014: Fourth Symposium on Prospects in the Physics of Discrete Symmetries

Predicting Lepton Mixing Parameters including Majorana Phases from Δ(6n2) Flavour Symmetry and Generalised CP

2 Dec 2014, 19:05

30m

River Room

Parallel 1: g-2 & discrete symmetries (T, C, P), flavour, accidental symmetries

Speaker

Mr Thomas Neder (University of Southampton)

Description

An important class of flavour groups that are subgroups of U(3) and that predict experimentally viable lepton mixing parameters including Majorana phases, is the Delta(6n^2) series. The most well-known member is Delta(24)=S_4. I present results of several extensive studies of lepton mixing predictions obtained in models with a Delta(6n^2) flavour group that preserve either the full Klein symmetry or a Z_2 subgroup for neutrinos and can include a generalised CP symmetry. Predictions include mixing angles and Dirac CP phase generally; and if invariance under a generalised CP symmetry is included, also Majorana phases. For this, the interplay of flavour group and generalised CP symmetry has to be studied carefully. Furthermore, I present results for neutrinoless double-beta decay.

Presentation materials

Slides

Neder_Discrete_London_2014.pdf