Electroweak Gauge Models with Broken Generation Symmetry

概要

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As an approach to the so-called generation or family problem in the framework of the minimal SU(2)×U(1) electroweak gauge model with n lepton and n quark generations, we require that the whole Lagrangian be invariant under the symmetric group S_n with respect to generation. Since, with the standard Higgs doublet φ only, one necessarily encounters degeneracy in fermion masses if n≧3, in contradiction to observation, we introduce, in addition, n Higgs doublets φ_i which carry the generation index. It is shown that no more than six generations can be incorporated into the model and that no more than three generations can mix weakly. We also investigate the case in which there are only n-1 Higgs doublets transforming as an (n-1)-plet under S_n.
理論物理学刊行会の論文
1983-12-25

著者

HONZAWA Naofusa
Atomic Energy Research Institute, College of Science and Technology, Nihon University
Ito I
Atomic Energy Research Institute And Department Of Physics College Of Science And Technology Nihon U
Honzawa N
Nihon Univ. Tokyo
Tsai S.
Atomic Energy Research Institute Nihon University
Tsai S.
Atomic Energy Research Institute And Department Of Physics College Of Science And Technology Nihon U
ITO Isao
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon
MATSUI Shuichi
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon
YOSHIDA Hideki
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon
Matsui S
Chisso Petrochemical Corp. Ichihara‐shi Jpn
Honzawa Naofusa
Atomic Energy Research Institute College Of Science And Technology Nihon University
Yoshida Hideki
Atomic Energy Research Institute And Department Of Physics College Of Science And Technology Nihon U
YOSHIDA Hideki
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon University
TSAI S.
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon University
ITO Isao
Atomic Energy Research Institute College of Science and Technology, Nihon Unversity
ITO Isao
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon University
HONZAWA Naofusa
Atomic Energy Research Institute, College of Science and Technology Nihon University
HONZAWA Naofusa
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon University
MATSUI Shuichi
Atomic Energy Research Institute and Department of Physics College of Science and Technology, Nihon University
TSAI S.
Atomic Energy Research Institute, College of Science and Technology, Nihon University

Electroweak Gauge Models with Broken Generation Symmetry

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