126 GeV Higgs boson and universality relations in the SO(5) × U(1) gauge-Higgs unification

الأصل · EN

The Higgs boson mass mₕ=126 GeV in the SO(5) × U(1) gauge-Higgs unification in the Randall-Sundrum space leads to important consequences. An universal relation is found between the Kaluza-Klein (KK) mass scale mKK and the Aharonov-Bohm phase θₕ in the fifth dimension; mKK 1350 GeV/(θₕ)⁰.⁷⁸⁷. The cubic and quartic self-couplings of the Higgs boson become smaller than those in the SM, having universal dependence on θₕ. The decay rates H → γγ, gg are evaluated by summing contributions from KK towers. Corrections coming from KK excited states turn out very small. With θₕ= 0.1 0.35, the mass of the first KK Z is predicted to be 2.5 6 TeV.