  We study production and decay of a radion predicted in the Randall-Sundrum
model at the LHC. The radion is a scalar particle and its production and decay
channels are quite similar to those of the Higgs boson. We find constraints on
the model parameter space taking account of the results of the Higgs boson
search at the LHC. We also study a possibility discriminating the radion from
the scalar particles in the other model such as the supersymmetric standard
model at the LHC experiments.
