$\eta_c\to\phi\phi$ 与 $\omega\phi$ 分支比的改进测量
高能物理 - 实验
2017-05-17 v4
摘要
利用 BESIII 探测器积累的 个 J/ 事件，我们研究了 衰变到 和 末态。 的分支比测量为 ，其中第一个不确定度为统计误差，第二个为系统误差，第三个来自 的不确定度。未观察到 的双 OZI 压低衰变的显著信号，并且在 90\% 置信水平下分支比的上限确定为 。
引用
@article{arxiv.1612.02941,
title = {Improved measurements of branching fractions for $\eta_c\to\phi\phi$ and $\omega\phi$},
author = {M. Ablikim and M. N. Achasov and X. C. Ai and O. Albayrak and M. Albrecht and D. J. Ambrose and A. Amoroso and F. F. An and Q. An and J. Z. Bai and R. Baldini Ferroli and Y. Ban and D. W. Bennett and J. V. Bennett and M. Bertani and D. Bettoni and J. M. Bian and F. Bianchi and E. Boger and I. Boyko and R. A. Briere and H. Cai and X. Cai and O. Cakir and A. Calcaterra and G. F. Cao and S. A. Cetin and J. F. Chang and G. Chelkov and G. Chen and H. S. Chen and H. Y. Chen and J. C. Chen and M. L. Chen and S. Chen and S. J. Chen and X. Chen and X. R. Chen and Y. B. Chen and H. P. Cheng and X. K. Chu and G. Cibinetto and H. L. Dai and J. P. Dai and A. Dbeyssi and D. Dedovich and Z. Y. Deng and A. Denig and I. Denysenko and M. Destefanis and F. De Mori and Y. Ding and C. Dong and J. Dong and L. Y. Dong and M. Y. Dong and Z. L. Dou and S. X. Du and P. F. Duan and J. Z. Fan and J. Fang and S. S. Fang and X. Fang and Y. Fang and R. Farinelli and L. Fava and O. Fedorov and F. 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H. Zou},
journal= {arXiv preprint arXiv:1612.02941},
year = {2017}
}