Study of the efficiency of event start time determination at BESIII

被引：9
|
作者：
Guan Ying-Hui [1 ]
Lu Xiao-Rui [1 ]
Zheng Yang-Heng [1 ]
Wang Yi-Fang [2 ]
机构：
[1] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
来源：
CHINESE PHYSICS C | 2014年 / 38卷 / 01期
基金：
中国国家自然科学基金;
关键词：
event start time; MDC; BESIII; TRACK RECONSTRUCTION;
D O I：
10.1088/1674-1137/38/1/016201
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A method to estimate the efficiency of event start time determination at BESIII is developed. This method estimates the efficiency at the event level by combining the efficiencies of various tracks (e, mu, pi, K, p, gamma) in a Bayesian way. Efficiencies results and the difference between data and MC at the track level are presented in this paper. For a given physics channel, event start time efficiency and systematic error can be estimated following this method.
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页数：4
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