Measurements of Absolute Branching Fractions of Fourteen Exclusive Hadronic D Decays to η
Measurements of Absolute Branching Fractions of Fourteen Exclusive Hadronic D Decays to η
复制标题
十四个专有强子 D 衰变至 δ 的绝对分支分数的测量
DOI：
10.1103/physrevlett.124.241803
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发表时间：
2020
影响因子：
8.6
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
BESIII Collaboration M. Ablikim;et al.
利用BESIII探测器在质心能量为3.773 GeV处获得的碰撞数据，我们首次测量了14个强子衰变到排他性末态的绝对分支分数，例如，和;，和。在这些衰变中，和衰变的分支分数最大，分别为B（D 0 →K-π+η）=（1.853± 0.025 stat ± 0.031 syst）%和B（D+→ KS 0 π+η）=（1.309± 0.037 stat ± 0.031 syst）%。的电荷宇称不对称的最高事件产额的六个衰变的确定，并没有发现统计上显着的电荷宇称违反。
Usingofcollision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we report the first measurements of the absolute branching fractions of 14 hadronicdecays to exclusive final states with an, e.g.,,,,,,,, and;,,,,, and. Among these decays, theanddecays have the largest branching fractions, which are B(D0→K-π+η)=(1.853±0.025stat±0.031syst)% and B(D+→KS0π+η)=(1.309±0.037stat±0.031syst)%, respectively. The charge-parity asymmetries for the six decays with highest event yields are determined, and no statistically significant charge-parity violation is found.