Amplitude analysis and branching-fraction measurement of D-s(+) -> (KSK-)-K-0 pi(+)pi(+)
Amplitude analysis and branching-fraction measurement of D-s(+) -> (KSK-)-K-0 pi(+)pi(+)
复制标题
振幅分析和分支分数测量 Ds ØK^0_SK^ؤÏ^ Ï^
DOI：
10.1103/physrevd.103.092006
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发表时间：
2021
影响因子：
5
通讯作者：
Briere R.
中科院分区：
文献类型：
--
作者：
Ablikim M.;Achasov M. N.;Adlarson P.;Ahmed S.;Albrecht M.;Aliberti R.;Amoroso A.;An M. R.;An Q.;Bai X. H.;Bai Y.;Bakina O.;Ferroli R. Baldini;Balossino I;Ban Y.;Begzsuren K.;Berger N.;Bertani M.;Bettoni D.;Bianchi F.;Bloms J.;Bortone A.;Boyko I;Briere R.
衰变的第一个振幅分析是使用数据样本进行的，对应于 BESIII 探测器在 4.178 至 4.226 GeV 质心能量处收集的积分光度。选取纯度为 97.5% 的 3000 多个事件用于执行幅度分析，发现描述数据所需的 9 个成分。确定中间衰变的相对分数和阶段。利用振幅分析结果估计的检测效率，测量衰减的分支分数。
The first amplitude analysis of the decayis presented using the data samples, corresponding to an integrated luminosity of, collected with the BESIII detector atcenter-of-mass energies between 4.178 and 4.226 GeV. More than 3000 events selected with a purity of 97.5% are used to perform the amplitude analysis, and nine components are found necessary to describe the data. Relative fractions and phases of the intermediate decays are determined. With the detection efficiency estimated by the results of the amplitude analysis, the branching fraction ofdecay is measured to be.