Abstract
The radion may be the lightest new state present in the Randall-Sundrum (RS) model. We examine the couplings of the radion to the Standard Model (SM) fields in the scenario where they propagate in the bulk and expand into Kaluza-Klein towers. These couplings are then contrasted with those of the more familiar case where the SM fields are confined to the TeV-brane. We find that the couplings of the radion to both gg and γγ can be significantly different in these two cases. Implications for radion collider phenomenology are discussed.
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