| 摘要: |
| 基于BOSS软件框架，利用BESIII合作组产生的400 M单举ψ(3686)事例，研究在BESIII探测器上实现测量到cJ→ηη’分支比的可能性.以无信号事例的单举ψ(3686)样本为背景样本，以纯信号蒙特卡罗事例为信号样本，控制信号事例，在分别假设观测到cJ→ηη’衰变过程信号显著水平为3σ和5σ的情况下，得到该过程对应的分支比. |
| 关键词: cJ衰变 BESIII探测器 cJ→ηη’测量 蒙特卡罗研究 |
| DOI： |
| 分类号:O572 |
| 基金项目:国家自然科学基金资助项目(11205082,11205083) |
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| Abstract: |
| Based on BOSS framework, by using the 400 M inclusive ψ(3686) events produced by BESIII data production group, the possibility was studied that of measurement the branching fraction of cJ→ηη’ at BESIII. By using 400 M inclusive ψ(3686) events as background sample and exclusive Monte Carlo sample as signal sample, assuming the signal significant to be 3σ and 5σ by controlling the signal event, the corresponding branching fractions were obtained. |
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