An Experimental Review of Charmonium

Details An Experimental Review of Charmonium An Experimental Review of Charmonium

2008-10-17

arxiv.org/abs/0810.3231v1

Physics

High Energy Physics

High Energy Physics - Experiment

Submission to the 34th International Conference on High Energy Physics

Scientific paper

This review briefly outlines recent experimental results from the charmonium system. These include new measurements of the M1 radiative transition rates $B(\psi(1S,2S)\to\gamma\eta_c(1S))$; new insights into the mass of the $\eta_c(1S)$; the observation of $J/\psi(1S)$ decays to three photons; new measurements of the two-photon widths of the $\chi_{cJ}(1P)$; the observation of radiative decays of the $\chi_{cj}(1P)$ to light quarks; a precise measurement of the $h_c(1P)$ mass; and an update on properties of the $\eta_c(2S)$. Each result adds piecemeal to our understanding of the strong force.

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