Neutrino Mixing and Discrete Symmetries

Understand

In this paper we discuss a new way to derive neutrino mixing patterns, which originates from the idea proposed in a recent article by Hernandez and Smirnov.

• Its applications to various cases are discussed.
• We first present the complete set of possible mixing patterns for the minimal case where unbroken residual symmetries of the Majorana neutrino and left-handed charged-lepton mass matrices obey some general assumptions that are also satisfied by many models based on discrete symmetries.
• We find that they are either well-known mixing patterns or phenomenologically disfavored ones.