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How can CP violation in the neutrino sector be large in a symmetric model?
Yoshio Koide, Hiroyuki Nishiura
Based on a neutrino mass matrix model in which a 2-3 symmetry is only broken by a phase parameter, it is investigated how the lepton mixing matrix can deviate from the so-called tr…
Charged Lepton Mass Spectrum and Supersymmetric Yukawaon Model
Yoshio Koide
On the basis of the so-called supersymmetric yukawaon model, it is investigated what form of the superpotential W can lead to the observed charged lepton mass spectrum. A simple fo…
Yukawaon Model in the Quark Sector and Nearly Tribimaximal Neutrino Mixing
Yoshio Koide
For the purpose of deriving the observed nearly tribimaximal neutrino mixing, a possible yukawaon model in the quark sector is investigated. Five observable quantities (2 up-quark…
Can Massless and Light Yukawaons be Harmless?
Yoshio Koide
In the so-called yukawaon model, where the effective Yukawa coupling constants Y_f^{eff} (f=e,ν,u,d) are given by vacuum expectation values (VEVs) of gauge singlet scalars (yukawao…