1-20 Bottomonium-like States in Coupled-channel Model with on-shell Approximation

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At present the Bottomonium spectra have not been so well explored as the Charmonium spectra. Espescially,the Bottomonium states found in experiment are less than the Charmonium states. However, prior to the discoveryof Zc(3900) in the +J= invariant mass
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