Combining Flavour and CP Symmetries

3rd Symposium on Prospects in the Physics of Discrete Symmetries

Feruglio, Ferruccio^1

Dipartimento di Fisica e Astronomia G. Galilei, Università di Padova, Sezione di Padova, Via Marzolo 8, I-35131 Padua, Italy^1

关键词: Discrete symmetry;    Mixing angle;    Mixing parameters;    Neutrino mass;    Neutrino oscillations;    Realistic model;    Symmetry-breaking;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/447/1/012018/pdf
DOI  :  10.1088/1742-6596/447/1/012018

来源: IOP

【 摘 要 】

I shortly review the impact of the most recent neutrino oscillation data on our attempts to construct a realistic model for neutrino masses and mixing angles. Models based on anarchy and its variants remain an open possibility, reinforced by the latest experimental findings. Many models based on discrete symmetries no longer work in their simplest realizations. I illustrate several proposals that can rescue discrete symmetries. In particular I discuss the possibility of combining discrete flavour symmetries and CP, and I describe a recently proposed symmetry breaking pattern that allows to predict all mixing parameters, angles and phases, in terms of a single real unknown. I analyze several explicit examples of this construction, providing new realistic mixing patterns.