The CLEO collaboration will explore the charm sector starting 2003. It is foreseen to collect on the order of 6 million [Formula: see text] pairs, 300000 [Formula: see text] pair at threshold and one billion J/ψ decays. High precision charm data will enable us to validate upcoming lattice QCD calculations that are expected to produce 1-3% errors for some non-perturbative QCD quantities. Virtually background free, they will provide interesting decay mechanisms to explore light meson spectroscopy. The radiative J/ψ decays will be the first high statistics data set well suited for meson spectroscopy between 1600 and 3000 MeV. Together with the already existing data from the ϒ resonances, data sets for a large number of decay mechanisms will be available, which, combined, can be used to extract the nature of many resonances.
Scalar glueball and meson spectroscopy in unquenched lattice QCD with improved staggered quarks