3–7 Dec 2012
IST Congress Center
Europe/Lisbon timezone
<big>NEWS: Deadline for Proceedings - 28 February 2013 </big>

The S3 flavour symmetry: quarks, leptons and Higgs sectors

4 Dec 2012, 17:00
25m
Main Auditorium (IST Congress Center)

Main Auditorium

IST Congress Center

Instituto Superior Técnico Avenida Rovisco Pais,1 1049-001 Lisboa, Portugal

Speaker

Alfonso Mondragon

Description

We present a brief overview of the minimal S3 invariant extension of the Standard Model in which the concept of flavour is extended to the Higgs sector by introducing in the theory three Higgs fields which are SU(2) doublets. The mass matrices of quarks and leptons are reparametrized in terms of their eigenvalues, thus allowing to express all entries in the mixing matrices, V_CKM and U_PMNS, in terms of mass ratios, and from a numerical analysis, in excellent agreement with the most recent experimental data. In the leptonic sector the S3xZ2 symmetry implies a non-vanishing ans sizeable reactor mixing angle, theta_13 ~ 9.2deg, in very good agreement with experimental data.

Primary author

Alfonso Mondragon

Presentation materials