ar X iv : h ep - e x / 05 08 02 8 v 3 1 5 Se p 20 05 CLEO spectroscopy results

Hadron spectroscopy plays a valuable role in particle physics. It was crucial in validating quantum chromodynamics (QCD) and the quark substructure of matter. It provides a stage for understanding nonperturbative techniques, not only in QCD but elsewhere in physics. Hadron spectra are crucial in separating electroweak physics from strong interaction effects, as in charm and beauty decays. Quarks and leptons themselves have an intricate level and weak coupling structure for which we have no fundamental understanding. Sharpening spectroscopic techniques may help solve this problem. I shall present recent spectroscopy contributions from the CLEO Collaboration based on data at the Cornell Electron Storage Ring (CESR) utilizing CLEO’s excellent particle identification and resolution. Separate sections will treat charmonium, charm, beauty, and upsilons. The CLEO detector is described in another contribution to this Conference [1].