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 hc, ηc, and ηc(2S). The masses, widthes, and production rates of these states will be reported. The results are based on a data sample of 106 million ' events collected with the BESIII experiments at the BEPCII collider.
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