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  • Observation of $\psi(3686)\to 3\phi
    Ablikim, M; Achasov, M. N; Bertani, M; Bettoni, D; Briere, R. A; Chen, M. L; Chen, X. T; Chen, Z. J; Dai, J. P; Ding, B; Ding, Y; Dong, M. Y; Dong, X; Du, M. C; Fan, Y. H; Fang, Y; Feng, Y. T; He, K. K; Holtmann, T; Hu, T; Huang, G. S; Huang, X. T; der Wiesche, N. in; Jiang, S. S; Jiao, J. B; Jiao, J. K; Jing, X. M; Khachatryan, V; Khoukaz, A; Kühn, W; Lenz, T; Li, Cheng; Li, H. B; Li, H. N; Li, J. S; Li, K; Li, Y. G; Liang, H; Liao, L. Z; Liu, B. J; Liu, H. B; Liu, L; Liu, Lu; Liu, S. B; Liu, W. K; Liu, X; Lou, X. C; Lu, Z. H; Luo, C. L; Luo, X. L; Ma, H. L; Ma, J. L; Ma, X. T; Meng, Z. X; Messchendorp, J. G; Miao, H; Muchnoi, N. Yu; Nefedov, Y; Pan, X; Pathak, A; Patteri, P; Peng, H. P; Plura, S; Qi, F. Z; Qi, M; Qi, T. Y; Qin, L. Q; Sarantsev, A; Scodeggio, M; Shan, X. Y; Shi, Q. Q; Sun, Z. Q; Wang, D. Y; Wang, J. J; Wang, W. P; Wang, Y. N; Wolke, M; Wu, J. F; Wu, Y. H; Xian, X. M; Xiao, Y. L; Xiao, Z. J; Xie, Y; Xu, G. F; Xu, H. Y; Xu, Q. J; Yan, F; Zhai, Y. C; Zhang, H; Zhang, H. Q; Zhang, J. X; Zhang, L. M; Zhang, X. M; Zhang, Z. D; Zhang, Z. Y; Zhao, Y. B; Zhou, L. P; Zhou, S; Zhu, S. Q; Zhu, Z. A

    03/2024
    Journal Article

    Using $(2.712\pm0.014)\times 10^9$ $\psi(3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of $\psi(3686)\to 3\phi$ decay with a significance larger than 10$\sigma$. The branching fraction of this decay is determined to be $(1.46\pm0.05\pm0.17)\times10^{-5}$, where the first uncertainty is statistical and the second is systematic. No significant structure is observed in the $\phi\phi$ invariant mass spectra.

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