Radion and Higgs masses in gauge-Higgs unification

We evaluate the radion and Higgs masses in the gauge-Higgs unification models on the warped geometry, in which the modulus is stabilized by the Casimir energy. We analyze the one-loop effective potential and clarify the dependences of those masses on the Wilson line phase $θ_H$. The radion mass varies 1-30GeV for $0.06\leq\sinθ_H\leq 0.3$, while the Higgs mass is 150-200 GeV and depends on $θ_H$ only logarithmically. The radion couplings to the standard model particles are sensitive to the warp factor, and are too small to detect at colliders in the region where the five-dimensional description is valid.

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