Measurement of the branching fraction of and search for a CP-violating asymmetry in η′ → π+ π- e+ e- at BESIII
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- 刊物名称:PHYSICAL REVIEW D
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- 作者:Ablikim, M; Achasov, MN; Adlarson, P et al. (BESIII Collaboration)
- 发表年度:2021
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