If it exists. My money’s on the Tevatron. They are way ahead. An international coallition, think UN, is inherently less efficient.
The “luminosity” of the LHC is MUCH GREATER than that of the Tevatron. Anything of note in the energy range they decide to run the LHC is far more likely to be found by it than by the Tevatron since they will gather data much much faster.