Track segment finding with CGEM-IT and matching to outer drift chamber tracks in the BESIII detector |
| |
Authors: | Xin-Hua Sun Liang-Liang Wang Ling-Hui Wu Xu-Dong Ju Qing-Lei Xiu Liao-Yuan Dong Ming-Yi Dong Wei-Dong Li Wei-Guo Li Huai-Min Liu Qun Ou-Yang Ye Yuan Yao Zhang |
| |
Institution: | 1. Institution of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
| |
Abstract: | The relative differences in coordinates of Cylindrical Gas Electron Multiplier Detector-based Inner Tracker (CGEM-IT) clusters are studied to search for track segments in CGEM-IT for the BESIII experiment. With the full simulation of single muon track samples, clear patterns are found and parameterized for the correct cluster combinations. The cluster combinations satisfying the patterns are selected as track segment candidates in CGEM-IT with an efficiency higher than 99%. The parameters of the track segments are obtained by a helix fitting. Some χ2 quantities, evaluating the differences in track parameters between the track segments in CGEM-IT and the tracks found in the outer drift chamber, are calculated and used to match them. Proper χ2 requirements are determined as a function of transverse momentum and the matching efficiency is found to be reasonable. |
| |
Keywords: | CGEM-IT track segment finding track matching |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《中国物理C(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国物理C(英文版)》下载免费的PDF全文 |