Calibration study of the X-T relation for the BESⅢ drift chamber

Get Citation
KANG Xiao-Lin, WU Ling-Hui, WU Zhi, LUO Tao, HU Chen, WANG Hai-Xia, FANG Shuang-Shi, HE Kang-Lin, LI Wei-Dong, LI Wei-Guo, LIU Huai-Min, MAO Ze-Pu, WANG Liang-Liang, YUAN Ye and ZHANG Yao. Calibration study of the X-T relation for the BESⅢ drift chamber[J]. Chinese Physics C, 2015, 39(2): 026002. doi: 10.1088/1674-1137/39/2/026002
KANG Xiao-Lin, WU Ling-Hui, WU Zhi, LUO Tao, HU Chen, WANG Hai-Xia, FANG Shuang-Shi, HE Kang-Lin, LI Wei-Dong, LI Wei-Guo, LIU Huai-Min, MAO Ze-Pu, WANG Liang-Liang, YUAN Ye and ZHANG Yao. Calibration study of the X-T relation for the BESⅢ drift chamber[J]. Chinese Physics C, 2015, 39(2): 026002.  doi: 10.1088/1674-1137/39/2/026002 shu
Milestone
Received: 2014-05-12
Revised: 2014-06-28
Article Metric

Article Views(1600)
PDF Downloads(275)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Calibration study of the X-T relation for the BESⅢ drift chamber

    Corresponding author: KANG Xiao-Lin,
    Corresponding author: WU Ling-Hui,

Abstract: Offline calibration plays an important role in BESⅢ offline data processing. In order to achieve good spatial and momentum resolution, it is necessary to implement high precision offline calibration for the BESⅢ drift chamber. This paper studies the time-to-distance relations, which are important calibration constants for track reconstruction. The parameterization of the time-to-distance relation, studies of left-right asymmetry and studies of variation with entrance angle are performed. The impact of dead channels on the time-to-distance relation is given special attention in order to reduce the shift in measured momentum for tracks passing near dead cells. Finally we present the resolutions for barrel Bhabha events (|cosθ|<0.8) from a J/ψ data set taken in 2012. The average spatial resolution is 123 μ and the momentum resolution for 1.548 GeV/c Bhabha tracks is 11.9 MeV/c.

    HTML

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return