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Browsing by Author "Takasugi, Eiichi"

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Browsing by Author "Takasugi, Eiichi"

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  • Kanemura, Shinya; Matsuda, Koichi; Ota, Toshihiko; Petcov, Serguey T.; Shindou, Tetsuo; Takasugi, Eiichi (2007-05-15)
    We study how to incorporate CP violation in the Froggatt--Nielsen (FN) mechanism. To this end, we introduce non-renormalizable interactions with a flavor democratic structure to the fermion mass generation sector. It is ...
  • Kanemura, Shinya; Matsuda, Koichi; Ota, Toshihiko; Shindou, Tetsuo; Takasugi, Eiichi; Tsumura, Koji (2006-03-23)
    We study phenomenological predictions in the scenario with the quasi-degenerate relation among neutrino Dirac masses, m_D1 simeq m_D2 < m_D3, assuming the bi-maximal mixing at the grand unification scale in supersymmetric ...
  • Kanemura, Shinya; Matsuda, Koichi; Ota, Toshihiko; Shindou, Tetsuo; Takasugi, Eiichi; Tsumura, Koji (2006-03-22)
    We examine contributions from Majorana phases to lepton flavor violating processes in the framework of the minimal supersymmetric standard model with heavy right-handed neutrinos. All phases in the complex neutrino Yukawa ...