Recent Results from CLEO Available to Purchase

The CLEO Experiment, utilizing symmetric $e+e−$ collisions provided by the Cornell Electron Storage Ring (CESR) in the charmonium and bottomonium regions, has a wide‐reaching program in the study of hadrons and the strong force. This review briefly summarizes recent contributions the CLEO Collaboration has made in the study of: (1) light quark systems (rare decays of the η̗); (2) charmonium radiative decays to light quarks (J/ψ and ψ(2S) radiative decays to the η and η̗); (3) mesons with open charm (the D and $Ds$ decay constants); (4) charmonium transitions (a multipole analysis of $ψ(2S) → γχc1,2$ and $χc1,2 → γJ/ψ);$ and (5) bottomonium spectroscopy (confirming evidence for the discovery of the $ηb(1S)).$