Using a data sample of 448.1×106 ψ(3686) events collected with the BESIII detector operating at the BEPCII, we perform search for the hadronic transition hc→π+π-J/ψ via ψ(3686)→π0hc. No signals of the transition are observed, and the upper limit on the product branching fraction B(ψ(3686)→π0hc)B(hc→π+π-J/ψ) at the 90% confidence level (C.L.) is determined to be 2.0×10-6. This is the most stringent upper limit to date.
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The authors thank S. L. Zhu for helpful comments and discussions. X. Z. W. is grateful to J. F. Jiang, H. S. Li, L. Meng, G. J. Wang, S. J. Wu, and B. Zhou for helpful discussions. This project is supported by the National Natural Science Foundation of China under Grants No. 11621131001 and No. 11575008.
© 2018 authors.