Study of charmonium spectroscopy at BESIII

Abstract

In this talk, we will present the results on the charmonium spin singlet states below the open charm threshold, including h_c, η_c, and η_c(2S). The masses, widthes, and production rates of these states will be reported. The results are based on a data sample of 106 million ψ' events collected with the BESIII experiments at the BEPCII collider.

4 pages, 3 figures, hadron2011 proceeding v2

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