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arXiv · hep-ph/9705239

Democratic Seesaw Mass Matrix Model and New Physics

Yoshio Koide
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Abstract

A seesaw mass matrix model is reviewed as a unification model of quark and lepton mass matrices. The model can understand why top-quark mass m_t is so singularly enhanced compared with other quark masses, especially, why m_t >> m_b in contrast to m_u = O(m_d), and why only top-quark mass is of the order of the electroweak scale Lambda_W, i.e., m_t = O(Lambda_W). The model predicts the fourth up-quark t' with a mass m_{t'}= O(m_{W_R}), and an abnormal structure of the right-handed up-quark mixing matrix U_R^u. Possible new physics is discussed.

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Yoshio Koide. 1997-05-06. Democratic Seesaw Mass Matrix Model and New Physics. https://arxiv.org/abs/hep-ph/9705239

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