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Ahmed, S.; Amoroso, A.; Anita; Bai, Y.; Bennett, J. V.; Bertani, M.; Cai, X.; Calcaterra, A.; Cao, G. F.; Cetin, S. A.; Chen, S. J.; Chen, X. R.; Cibinetto, G.; Dai, X. C.; De Mori, F.; Dong, M. Y.; Du, S. X.; Farinelli, R.; Felici, G.; Gao, X. L.; Gersabeck, E. M.; Hou, Y. R.; Huang, Z.; Huesken, N.; Irshad, M.; Ji, X. B.; Jiang, X. S.; Johansson, T.; Kappert, R.; Khoukaz, A.; Koch, L.; Kuessner, M.; Kurth, M. G.; Kühn, W.; Li, P. R.; Liu, B. J.; Liu, D.; Liu, D. Y.; Liu, Ke; Liu, S. B.; Liu, X.; Lu, J. D.; Luo, C. L.; Luo, M. X.; Lyu, X. R.; Ma, X. X.; Mao, Y. J.; Mezzadri, G.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Pan, X.; Pan, Y.; Patteri, P.; Peng, H. P.; Peters, K.; Ping, J. L.; Pitka, A.; Qi, M.; Qian, S.; Qian, Z.; Qin, X. P.; Qu, S. Q.; Ravindran, K.; Redmer, C. F.; Rolo, M.; Schnier, C.; Schoenning, K.; Shen, P. X.; Shi, X. D; Sosio, S.; Spataro, S.; Sun, J. F.; Sun, L.; Sun, Y. K; Tan, Y. H.; Tang, G. Y.; Thoren, V.; Tsednee, B.; Wang, Meng; Wang, W. H.; Wang, X. F.; Wei, D. H.; Wen, S. P.; Wiedner, U.; Wilkinson, G.; Wu, L. J.; Xiao, S. Y.; Xiong, X. A.; Xu, Q. J.; Yan, W. B.; Yang, L.; Yu, C. X.; Yuan, C. Z.; Yuan, X. Q.; Zhang, Jianyu; Zhao, J.; Zhong, C.; Zhou, X. R.; Zou, J. H.
The journal of high energy physics, 08/2020, Letnik: 2020, Številka: 8Journal Article
A bstract We measure the branching fractions for seven $$ {D}_s^{+} $$ D s + two-body decays to pseudo-scalar mesons, by analyzing data collected at $$ \sqrt{s} $$ s = 4 . 178 ∼ 4 . 226 GeV with the BESIII detector at the BEPCII collider. The branching fractions are determined to be $$ {\displaystyle \begin{array}{c}\mathcal{B}\left({D}_s^{+}\to {K}^{+}\eta \hbox{'}\right)=\left(2.68\pm 0.17\pm 0.17\pm 0.08\right)\times {10}^{-3},\\ {}\mathcal{B}\left({D}_s^{+}\to \eta \hbox{'}{\pi}^{+}\right)=\left(37.8\pm 0.4\pm 2.1\pm 1.2\right)\times {10}^{-3},\\ {}\mathcal{B}\left({D}_s^{+}\to {K}^{+}\eta \right)=\left(1.62\pm 0.10\pm 0.03\pm 0.05\right)\times {10}^{-3},\\ {}\mathcal{B}\left({D}_s^{+}\to \eta {\pi}^{+}\right)=\left(17.41\pm 0.18\pm 0.27\pm 0.54\right)\times {10}^{-3},\\ {}\mathcal{B}\left({D}_s^{+}\to {K}^{+}{K}_S^0\right)=\left(15.02\pm 0.10\pm 0.27\pm 0.47\right)\times {10}^{-3},\\ {}\mathcal{B}\left({D}_s^{+}\to {K}_S^0{\pi}^{+}\right)=\left(1.109\pm 0.034\pm 0.023\pm 0.035\right)\times {10}^{-3},\\ {}\mathcal{B}\left({D}_s^{+}\to {K}^{+}{\pi}^0\right)=\left(0.748\pm 0.049\pm 0.018\pm 0.035\right)\times {10}^{-3},\end{array}} $$ 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 $$ {D}_s^{+} $$ D s + → K + K − π + . Precision of our measurements is significantly improved compared with that of the current world average values.
