Calculable Violation of Gauge-Yukawa Universality and Top Quark Mass in the Gauge-Higgs Unification

Details Calculable Violation of Gauge-Yukawa Universality and Top Quark Mass in the Gauge-Higgs Unification Calculable Violation of Gauge-Yukawa Universality and Top Quark Mass in the Gauge-Higgs Unification

2009-04-02

arxiv.org/abs/0904.0304v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 4 figures

Scientific paper

We find that the one-loop correction to the ratio of Yukawa coupling and gauge coupling in the gauge-Higgs unification, "gauge-Yukawa universality violation", is finite and calculable in any space-time dimension. Applying this result to the ratio of top quark and W-boson masses, we show that the order one correction required to generate a viable top quark mass is indeed possible if the fermion embedding top quark belongs to the large dimensional representation of the gauge group and a vacuum expectation value of Higgs scalar field is very small comparing to the compactification scale.

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