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To identify the nature of the newly observed charged resonance Zc(4200), westudy its hadronic decays Zc(4200) -> J/psi pi, Zc(4200) -> eta_c rho andZc(4200) -> D bar D* as a charmonium-like tetraquark state. In the framework ofthe QCD sum rules, we calculate the three-point functions and extract thecoupling constants and decay widths for these interaction vertices. Includingall these channels, the full decay width of the Zc(4200) state is consistentwith the experimental value reported by the Belle Collaboration, supporting thetetraquark interpretation of this state.

Zc(4200)+ decay width as a charmonium-like tetraquark state