Speaker
Description
I will propose a phenomenologically successful $SU(5)$ Yukawa texture for both quarks and leptons that explains their GUT-scale mass ratios and mixing angles. Together with a complex-tribimaximal (TBM) seesaw mixing, this texture reproduces the neutrino mixing angles and predicts both Dirac and Majorana leptonic $CP$ violation. I will show that this framework can be accommodated in a family symmetry model based on the Frobenius group $\mathcal{T}_{13}$, a subgroup of $SU(3)$. The most important ingredient of the texture, asymmetry, singles out $\mathcal{T}_{13}$ as the minimal discrete symmetry. I will discuss how to build a unified model of effective interactions that yields the nontrivial features of the asymmetric texture without any fine-tuning.
Summary
I will discuss an $SU(5) \times \mathcal{T}_{13}$ gauge-family symmetry model for quarks and leptons.
