Aspects of Leptonic Flavour Mixing

Abstract

Since the discovery of neutrino oscillations many ideas have been put forward to explain the special features of the leptonic mixing and the differences with respect to the quark sector. In this talk I review some of these proposals, emphasizing especially their predictability. In the light of the new data, I first revisit fixed-point relations among mixing angles and phases. Then I briefly comment on radiative neutrino masses. Finally I discuss the role of flavour symmetries. Given the very many existing models I focus on two classes of models. On the one hand I illustrate the ability of models based on a generalization of the anarchy idea in reproducing the main features of both the quark and the lepton spectrum, also in a GUT framework. On the other hand I discuss less ambitious but more predictive models based on discrete flavour symmetries, centered on the properties of the leptonic mixing matrix.

Talk given at Neutrino 2016 (London, 4-9 July 2016) and Now 2016 (Otranto, 4-11 September 2016)

References in corpus (16)

• Neutrino masses and mixings: Status of known and unknown $3\nu$ parameters
• The low-scale approach to neutrino masses
• Systematic classification of two-loop realizations of the Weinberg operator
• Lepton Mixing from Delta (3 n^2) and Delta (6 n^2) and CP
• Origin of neutrino masses at the LHC: Delta L = 2 effective operators and their ultraviolet completions
• Lepton Mixing Predictions including Majorana Phases from $\Delta (6n^2)$ Flavour Symmetry and Generalised CP
• Classification of lepton mixing matrices from finite residual symmetries
• Recipes and Ingredients for Neutrino Mass at Loop Level
• A Bayesian comparison of U(1) lepton flavour models
• Unification of Gauge Couplings in Radiative Neutrino Mass Models
• Order and Anarchy hand in hand in 5D SO(10)
• Bilarge Neutrino Mixing and Abelian Flavor Symmetry
• Neutrino Mass Anarchy and the Universe
• The Simplest Models of Radiative Neutrino Mass: Excluding Simplified Zee Models and Beyond
• Radiative Neutrino Mass Models
• A realistic pattern of fermion masses from a five-dimensional SO(10) model

Cited by in corpus (1)

• Renormalization and radiative corrections to masses in a general Yukawa model