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Four-generation model based on an S4 permutation symmetry

Hiroshi Ozaki

  • Department of Physics, Tokai University, 1117 Kitakaname, Hiratsuka 259-12, Japan

Phys. Rev. D 40, 2425 – Published 1 October, 1989

DOI: https://doi.org/10.1103/PhysRevD.40.2425

Abstract

We consider an S4 family-symmetry model with four generations of leptons and quarks. A mass relation of the form mLmτ=mvmb=mamt is obtained. The predicted values of individual 4×4 Kobayashi-Maskawa matrix elements are within recent experimental data. If the charged-lepton mass of the fourth generation is at 30 GeV and the t-quark mass is at 35 GeV, the masses of the d- and u-type quarks of the fourth generation are predicted to be 73±2 GeV and 523±3 GeV, respectively, taking account of the renormalization-group effect.

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