Weak boson scattering in Gauge-Higgs Unification
arXiv:0904.3177 · doi:10.1088/1126-6708/2009/07/020
Abstract
The scattering amplitude for the longitudinal weak bosons is investigated in the SU(3) gauge-Higgs unification as a function of the scattering energy, the Wilson line phase θ_H and the warp factor. The θ_H-dependence of the amplitude is quite different in the flat and the warped spacetimes. Generically the amplitude is enhanced for θ_H=O(1) in the warped case while it is almost independent of θ_H in the flat case. This indicates the tree-level unitarity is violated in the warped case at a lower scale than that in the flat case.
22 pages, 8 figures, published version in JHEP