TL;DR
This paper reports on recent spectroscopy studies of heavy quarkonia using data from the CLEO III experiment, including new state observations and precise measurements of decay processes.
Contribution
It presents the first observation of a new Y(1D) state and detailed measurements of hadronic and radiative transitions in heavy quarkonium systems.
Findings
Observation of a new Y(1D) state
Precise branching ratio measurements of charmonium and bottomonium
Insights into eta_c(2S) and X(3872) states
Abstract
In the last years, the CLEO III experiment has recorded a large collection of data sets at the Y(1S), Y(2S), Y(3S) and psi(2S) resonances. Preliminary results of studies of these data sets are shown here, which include the observation of a new Y(1D) state, as well as several hadronic and radiative transitions of Y and psi(2S) states. In addition, precision branching ratio measurements of charmonium and bottomonium states and recent developments involving the eta_c(2S) and X(3872) states are presented.
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