Deviation of Yukawa Coupling in Gauge-Higgs Unification
Yuki Adachi, Nobuhito Maru
TL;DR
This paper investigates how Yukawa couplings deviate in gauge-Higgs unification models compared to the Standard Model, deriving formulas for KK spectra and applying them to tau and bottom quarks.
Contribution
It provides an analytic formula for KK mass spectrum and Yukawa coupling deviations, incorporating brane mass terms for flavor mixing and exotic fermion removal.
Findings
Derived an analytic formula for KK mass spectrum and Yukawa couplings.
Numerically evaluated the ratio of Yukawa couplings for tau and bottom quarks.
Quantified deviations from Standard Model Yukawa couplings in gauge-Higgs unification.
Abstract
We study the deviation of yukawa coupling in the gauge-Higgs unification scenario from the Standard Model one. Taking into account the brane mass terms necessary for generating the flavor mixing and removing the exotic massless fermions, we derive an analytic formula determining the KK mass spectrum and yukawa coupling. Applying the obtained results to the tau and bottom yukawa couplings, we numerically calculate the ratio of the yukawa couplings in the gauge-Higgs unification and in the Standard Model.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Black Holes and Theoretical Physics · Quantum Chromodynamics and Particle Interactions