Track segment finding with CGEM-IT and matching to tracks in ODC

分类： 物理学 >> 核物理学 提交时间： 2016-09-02

Xin-Hua Sun Liang-Liang Wang Ling-Hui Wu Xu-Dong J 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

摘要： 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. 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 chi-squared quantities, evaluating the differences in track parameters between the track segments in CGEM-IT and the tracks found in Outer-Drift-Chamber (ODC), are calculated and used to match them. Proper chi-squared requirements are determined as a function of transverse momentum and the matching efficiency is found reasonable.

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