Calibration study of the X-T relation for the BESIII drift chamber
Kang XL(康晓琳); Wu LH(伍灵慧); Wu Z(吴智); Fang SS(房双世); He KL(何康林); Li WD(李卫东); Li WG(李卫国); Liu HM(刘怀民); Mao ZP(毛泽普); Wang LL(王亮亮); Yuan Y(袁野); Zhao Y(赵瑶); Kang, XL; Wu, LH; Wu, Z; Luo, T; Hu, C; Wang, HX; Fang, SS; He, KL; Li, WD; Li, WG; Liu, HM; Mao, ZP; Wang, LL; Yuan, Y; Zhang, Y
刊名CHINESE PHYSICS C
2015
卷号39期号:2页码:26002
关键词BESIII drift chamber X-T relation calibration
学科分类Physics
DOI10.1088/1674-1137/39/2/026002
通讯作者康晓琳 ; 伍灵慧
文章类型Article
英文摘要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 (vertical bar cos theta vertical bar < 0.8) from a J/psi data set taken in 2012. The average spatial resolution is 123 mu m and the momentum resolution for 1.548 GeV/c Bhabha tracks is 11.9 MeV/c.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI ; CA
WOS记录号WOS:000349740400008
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228110
专题中国科学院高能物理研究所_实验物理中心_期刊论文
中国科学院高能物理研究所_实验物理中心
中国科学院高能物理研究所_计算中心
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Kang XL,Wu LH,Wu Z,et al. Calibration study of the X-T relation for the BESIII drift chamber[J]. CHINESE PHYSICS C,2015,39(2):26002.
APA 康晓琳.,伍灵慧.,吴智.,房双世.,何康林.,...&Zhang, Y.(2015).Calibration study of the X-T relation for the BESIII drift chamber.CHINESE PHYSICS C,39(2),26002.
MLA 康晓琳,et al."Calibration study of the X-T relation for the BESIII drift chamber".CHINESE PHYSICS C 39.2(2015):26002.
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