节点文献
原始数据中束流相关本底的分离(英文)
Separation of the Beam Associated Sample from Raw Data
【摘要】 束流相关本底处理的不确定性是在BES/BEPC上进行R值测量的主要误差来源之一,提出从原始数据中分离出束流相关样本的新方法,并把此样本用于调节强子产生器LUARLW的参数,以减小强子探测效率的系统误差,提高R值的测量精度.
【Abstract】 The uncertainty of the treatment for the beam associated backgrounds is one of the dominant errors in the previous R measurement at BES/BEPC.A new method is developed to separate the beam associated sample from the raw data,and this sample is used in tuning the parameters of the hadronic generator LUARLW. This improvement can decrease the systematic error of the selection efficiency of hadronic events,and improve the precision of the R value.
【基金】 国家自然科学基金(10491300)资助~~
- 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2007年08期
- 【分类号】TL501.5
- 【下载频次】24