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Based on (2. 7120. 014) 10⁹ (3686) events collected by the BESIII collaboration, evidence of the hadronic decay hc KS⁰K^+^-+c. c. is found with a significance of 4. 3 in the (3686) ⁰ hc process. The branching fraction of hc KS⁰ K^+^- +c. c. is measured to be (7. 30. 81. 8) 10^-4, where the first and second uncertainties are statistical and systematic, respectively. Combining with the exclusive decay width of c KK, our result indicates inconsistencies with both pQCD and NRQCD predictions.
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