1997/05/06 by Yoshio Koide, Koide, Yoshio
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Opinion Dynamics and Social Influence #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9705239
talk at MMQL97. 11 pages (including a figure) [Latex]
arxiv created 1997/05/06 · openalex publication_date 1997/05/06 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 mt is so singularly enhanced compared with other quark masses, especially, why mt >> mb in contrast to mu = O(md), and why only top-quark mass is of the order of the electroweak scale LambdaW, i.e., mt = O(LambdaW). The model predicts the fourth up-quark t' with a mass mt'= O(mWR), and an abnormal structure of the right-handed up-quark mixing matrix URu. Possible new physics is discussed.