Lepton Mixing Predictions from (Generalised) CP and Discrete Flavour Symmetry

  title={Lepton Mixing Predictions from (Generalised) CP and Discrete Flavour Symmetry},
  author={Thomas Neder},
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 Δ(6n2) series. The most well-known member is Δ(24) = S4. I present results of several extensive studies of lepton mixing predictions obtained in models with a Δ(6n2) flavour group that preserve either the full Klein symmetry or a Z2 subgroup for neutrinos and can include a generalised CP symmetry. Predictions include mixing angles and… 
2 Citations

Figures and Tables from this paper

Neutrino Flavour Symmetries
We provide a general classification of flavour symmetries according to their interplay with the proper Poincare' and gauge groups and to their linear or nonlinear action in field space. We focus on
CP-odd invariants for multi-Higgs models and applications with discrete symmetry
This work proposes powerful methods for constructing basis invariants and determining whether they are CP odd or CP even, then systematically construct all of the simplest CP-odd invariants up to a given order, finding many new ones.


Lepton mixing parameters from discrete and CP symmetries
A bstractWe consider a scenario with three Majorana neutrinos in which a discrete, finite flavour group Gf is combined with a generalized CP transformation. We derive conditions for consistently
Generalised CP and Δ(6n2) family symmetry in semi-direct models of leptons
A bstractWe perform a detailed analysis of Δ(6n2) family symmetry combined with a generalised CP symmetry in the lepton sector, breaking to different remnant symmetries Gν in the neutrino and Gl in
Finite symmetry of leptonic mass matrices
We search for possible symmetries present in the leptonic mixing data from SU(3) subgroups of order up to 511. Theoretical results based on symmetry are compared with global fits of experimental data
Classification of lepton mixing matrices from finite residual symmetries
A bstractAssuming that neutrinos are Majorana particles, we perform a complete classification of all possible mixing matrices which are fully determined by residual symmetries in the charged-lepton
Neutrino mass and mixing: from theory to experiment
The origin of fermion mass hierarchies and mixings is one of the unresolved and most difficult problems in high-energy physics. One possibility to address the flavour problems is by extending the
Discrete Flavor Symmetries and Models of Neutrino Mixing
We review the application of non abelian discrete groups to the theory of neutrino masses and mixing, which is strongly suggested by the agreement of the TriBimaximal (TB) mixing pattern with