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  • Precise measurements of branching fractions for Ds+ meson decays to two pseudoscalar mesons
    Bakina, O.; Balossino, I.; Begzsuren, K.; Bennett, J. V.; Boyko, I.; Chelkov, G.; Chen, H. S.; Chen, S. J.; Chen, X. R.; Dedovich, D.; Denig, A.; Ding, Y.; Farinelli, R.; Fu, Y.; Gao, X. L.; Gong, W. X.; Greco, M.; Gu, M. H.; Han, T. T.; Hao, X. Q.; Held, T.; Hou, Y. R.; Huang, Z.; Huesken, N.; Irshad, M.; Janchiv, S.; Ji, X. L.; Jiang, X. S.; Johansson, T.; Kalantar-Nayestanaki, N.; Ke, B. C.; Kiuchi, R.; Kuemmel, M.; Lange, J. S.; Li, D. M.; Li, J. L.; Li, L. K.; Li, Lei; Liang, Y. T.; Liao, L. Z.; Libby, J.; Liu, B.; Liu, Fang; Liu, Huanhuan; Liu, Q.; Liu, T.; Liu, Y. B.; Lu, H. J.; Luo, T.; Lyu, X. R.; Ma, L. L.; Ma, Q. M.; Malde, S.; Mangoni, A.; Mao, Z. P.; Messchendorp, J. G.; Mo, Y. J.; Nefedov, Y.; Ouyang, Q.; Pan, X.; Ping, J. L.; Qiao, C. F.; Rong, G.; Schelhaas, Y.; Schoenning, K.; Shen, C. P.; Sosio, S.; Sun, G. X.; Sun, J. F.; Sun, Y. Z.; Tang, J.; Thoren, V.; Uman, I.; Wang, C. W.; Wang, D. Y.; Wang, Y.; Wang, Y. Q.; Wu, Z.; Xiao, Z. J.; Yan, Xu; Yang, Zhi; Yin, J. H.; You, Z. Y.; Yu, J. S.; Yu, T.; Yuncu, A.; Zafar, A. A.; Zhang, H. Y.; Zhang, S.; Zhang, Y. H.; Zhang, Y. T.; Zhang, Yan; Zhang, Z. Y.; Zhao, Ling; Zhao, Q.; Zhao, Y. B.; Zhong, C.; Zhu, K. J.; Zhu, S. H.; Zou, J. H.

    The journal of high energy physics, 28/8, Volume: 2020, Issue: 8
    Journal Article

    A bstract We measure the branching fractions for seven D s + two-body decays to pseudo-scalar mesons, by analyzing data collected at s = 4 . 178 ∼ 4 . 226 GeV with the BESIII detector at the BEPCII collider. The branching fractions are determined to be B D s + → K + η ' = 2.68 ± 0.17 ± 0.17 ± 0.08 × 10 − 3 , B D s + → η ' π + = 37.8 ± 0.4 ± 2.1 ± 1.2 × 10 − 3 , B D s + → K + η = 1.62 ± 0.10 ± 0.03 ± 0.05 × 10 − 3 , B D s + → η π + = 17.41 ± 0.18 ± 0.27 ± 0.54 × 10 − 3 , B D s + → K + K S 0 = 15.02 ± 0.10 ± 0.27 ± 0.47 × 10 − 3 , B D s + → K S 0 π + = 1.109 ± 0.034 ± 0.023 ± 0.035 × 10 − 3 , B D s + → K + π 0 = 0.748 ± 0.049 ± 0.018 ± 0.035 × 10 − 3 , where the first uncertainties are statistical, the second are systematic, and the third are from external input branching fraction of the normalization mode D s + → K + K − π + . Precision of our measurements is significantly improved compared with that of the current world average values.

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