English

Lepton Flavour Symmetries

High Energy Physics - Phenomenology 2021-03-23 v2

Abstract

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 the lepton sector and we review the different types of symmetries describing neutrino masses and the lepton mixing matrix. For each type of symmetry we present several illustrative examples and we discuss specific strengths and limitations.

Keywords

Cite

@article{arxiv.1912.06028,
  title  = {Lepton Flavour Symmetries},
  author = {Ferruccio Feruglio and Andrea Romanino},
  journal= {arXiv preprint arXiv:1912.06028},
  year   = {2021}
}

Comments

70 pages, 5 figures. Added extensive comments on the quark sector and new references. Version accepted for publication on Review of Modern Physics

R2 v1 2026-06-23T12:44:14.135Z