GUT and flavor models for neutrino masses and mixing

TL;DR

This review discusses current models of neutrino masses and mixing, emphasizing the role of flavor symmetries and grand unified theories in explaining lepton flavor phenomena.

Contribution

It provides a comprehensive overview of flavor symmetry-based models for neutrino masses, highlighting the integration with grand unified gauge groups.

Findings

Neutrino oscillation parameters are now well-measured.

Flavor symmetries are key to understanding lepton flavor structure.

Grand unified theories offer a framework linking quark and lepton sectors.

Abstract

In the recent years neutrino experiments have studied in detail the phenomenon of neutrino oscillations and most of the oscillation parameters have been measured with a good accuracy. However, in spite of many interesting ideas, the problem of flavor in the lepton sector remains an open issue. In this review, we discuss the state of the art of models for neutrino masses and mixings formulated in the context of flavor symmetries, with particular emphasis on the role played by grand unified gauge groups.