LeptonicCPviolating phase in the Yukawaon model

Abstract

In the so-called ``Yukawaon'' model, the (effective) Yukawa coupling constants ${Y}_{f}^{\text{eff}}$ are given by vacuum expectation values (VEVs) of scalars ${Y}_{f}$ (Yukawaons) with $3\ifmmode\times\else\texttimes\fi{}3$ components. In this brief article, we change VEV forms $⟨{Y}_{f}⟩$ in the previous paper into a unified form. Therefore, parameter fitting for quark and lepton masses and mixings is revised. Especially, we obtain predicted values of neutrino mixing ${\mathrm{sin}}^{2}2{\ensuremath{\theta}}_{13}$ and a leptonic $CP$ violating phase ${\ensuremath{\delta}}_{CP}^{\ensuremath{\ell}}$ that are consistent with the observed curve in the $({\mathrm{sin}}^{2}2{\ensuremath{\theta}}_{13},{\ensuremath{\delta}}_{CP}^{\ensuremath{\ell}})$ reported by the T2K group recently.