Yukawa Couplings and Effective Interactions in Gauge-Higgs Unification
Abstract
The wave functions and Yukawa couplings of the top and bottom quarks in the SO(5) x U(1) gauge-Higgs unification model are determined. The result is summarized in the effective interactions for θH(x) = θH + H(x)/fH where θH is the Wilson line phase and H(x) is the 4D Higgs field. The Yukawa, WWH and ZZH couplings vanish at θH = π. There emerges the possibility that the Higgs particle becomes stable.
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