DISCRETE 2010

Nearest-Neighbour Interaction from an Abelian Symmetry and Deviations from Hermiticity

7 Dec 2010, 17:50

25m

Aula Bisogno, 1st floor (CNR headquarter)

T, C, P, CP symmetries, Accidental symmetries (B, L conservation) T, C, P, CP symmetries, accidental symmetries (B, L cons.) (6)

Speaker

Catarina Simoes (Centro de Física Teórica de Partículas - Instituto Superior Técnico)

Description

We show that Nearest-Neighbour Interaction (NNI) textures for the quark mass matrices can be obtained through the introduction of an Abelian flavour symmetry. The minimal realisation re- quires a Z4 symmetry in the context of a two Higgs doublet model. It is further shown that the NNI textures can be in agreement with all present experimental data on quark masses and mixings, provided one allows for deviations of Hermiticity in the quark mass matrices at the 20% level.

Presentation materials

Slides

Simoes.pdf