[jessriedel]

Is the following reasoning correct? If the standard graviton is massless, it can't decay into r rbar for any particle r (because of momentum conservation). The standard graviton could have a tiny mass, but the low upper bounds on it means that the cross section is too tiny to be observed. RS gets around this because at LHC energies the RS graviton has a larger high-energy effective mass (because of extra dimesions) while still satisfying the low-energy experimental mass limits.