title: Differentiating the Higgs boson from the dilaton and radion at Hadron colliders.
abstract: A number of candidate theories beyond the standard model (SM) predict new scalar bosons below the TeV region. Among these, the radion, which is predicted in the Randall-Sundrum model, and the dilaton, which is predicted by the walking technicolor theory, have very similar couplings to those of the SM Higgs boson, and it is very difficult to differentiate these three spin-0 particles in the expected signals of the Higgs boson at the LHC and Tevatron. We demonstrate that the observation of the ratio σ(γγ)/σ(WW) gives a simple and decisive way to differentiate these, independent of the values of model parameters, the vacuum expectation values of the radion, and dilaton fields.
authors.affiliation: Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA.
authors.forename: Vernon
authors.initials: V
authors.lastname: Barger
authors.forename: Muneyuki
authors.initials: M
authors.lastname: Ishida
authors.forename: Wai-Yee
authors.initials: WY
authors.lastname: Keung