1212.2411 (Martin Holthausen et al.)

Lepton Mixing Patterns from a Scan of Finite Discrete Groups    [PDF]

Martin Holthausen, Kher Sham Lim, Manfred Lindner

The recent discovery of a non-zero value of the mixing angle theta_13 has ruled out tri-bimaximal mixing as the correct lepton mixing pattern generated by some discrete flavor symmetry. In this work we perform a general scan of all finite discrete groups with order less than 1536 to obtain their predictions for lepton mixing angles. To our surprise, the scan of over one million groups only yields 3 interesting groups that give lepton mixing patterns which lie within 3-sigma of the current best global fit values. A systematic way to categorize such groups and the implications for flavor symmetry will be discussed.

View original: http://arxiv.org/abs/1212.2411