Calibration study of the X-T relation for the BESIII drift chamber
文献类型：期刊论文
| 作者 | 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)
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| 刊名 | CHINESE PHYSICS C
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| 出版日期 | 2015 |
| 卷号 | 39期号:2页码:26002 |
| 关键词 | BESIII drift chamber X-T relation calibration |
| 通讯作者 | 康晓琳 ; 伍灵慧 |
| 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. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 收录类别 | SCI ; CA |
| WOS记录号 | WOS:000349740400008 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228110]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：高能物理研究所
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