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Search for excited charmonium states in $e^+e^-$ Annihilation at $\sqrt{s}=10.6$ GeV

Kui-Yong Liu·Zhi-Guo He·Kuang-Ta Chao
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Abstract

We suggest searching for excited charmonium states in $e^+e^-$ annihilation via double charmonium production at $\sqrt{s}=10.6$ GeV with $B$ factories, based on a more complete leading order calculation including both QCD and QED contributions for various processes. In particular, for the C=+ states, the $χ_{c0}(nP)$ (n=2,3) and $η_c(mS)$ (m=3,4) may have appreciable potentials to be observed; while for the C=- states, the $η_ch_c$ production and especially the $χ_{c1}h_c$ production might provide opportunities for observing the $h_c$ with higher statistics in the future. A brief discussion for the X(3940) observed in the double charmonium production is included.

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Kui-Yong Liu, Zhi-Guo He, Kuang-Ta Chao. 2008-01-04. Search for excited charmonium states in $e^+e^-$ Annihilation at $\sqrt{s}=10.6$ GeV. https://doi.org/10.1103/physrevd.77.014002

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