# Study of the ρπ Puzzle in Charmonium Decays

## 内容摘要

 The theoretical explanations about the "ρπ puzzle" in charmonium decays are reviewed exten-sively, and the comparison of theoretical predications with experimental data is made whenever possible. Three methods to estimate the ratio of the branching fractions of J/ψ and ψ′decays are also discussed. It is pointed out that in order to understand the ρπ puzzle, and the dynamics of charmonium decays, systematic studies should be made in theory, phenomenology and experiment aspects.

[V1] 2017-03-26 19:36:59 chinaXiv:201703.00607V1 下载全文

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