Gauge-Higgs Unification and LHC/ILC

Abstract

In the gauge-Higgs unification scenario the 4D Higgs field is identified with the zero mode of the extra-dimensional component of gauge potentials. The mass of the Higgs particle in the unification in the Randall-Sundrum warped spacetime is predicted to be in the range 100 GeV - 300 GeV. The WWZ gauge couplings remains almost universal as in the standard model, but substantial deviation results for the Higgs couplings. The WWH and ZZH couplings are suppressed by a factor \cos \theta_H from the values in the standard model, where \theta_H is the Yang-Mills AB phase along the fifth dimension. These can be tested at LHC and ILC.

Comments: 16 pages. Proceeding for SCGT2006 (Nagoya, Nov. 2006)