Non-Abelian Discrete Flavor Symmetries

Understand

This is an incomplete survey of some non-Abelian discrete symmetries which have been used recently in attempts to understand the flavor structure of leptons and quarks.

• To support such symmetries, new scalar particles are required.
• In some models, they are very massive, in which case there may not be much of a trace of their existence at the TeV scale.
• In other models, they are themselves at the TeV scale, in which case there is a reasonable chance for them to be revealed at the LHC (Large Hadron Collider) at CERN.