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Study of low momentum track reconstruction for the BESⅢ main drift chamber 被引量：3

Study of low momentum track reconstruction for the BESⅢ main drift chamber
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摘要 In order to overcome the difficulty brought by the circling charged tracks with transverse momentum less than 120 MeV in the BESⅢ Main Drift Chamber （MDC）, a specialized method called TCurlFinder was developed. This tracking method focuses on the charged track reconstruction under 120 MeV and possesses a special mechanism to reject background noise hits. The performance of the package has been carefully checked and tuned by both Monte Carlo data and real data. The study shows that this tracking method could obviously enhance the reconstruction efficiency in the low transverse momentum region, providing physics analysis with more and reliable data. In order to overcome the difficulty brought by the circling charged tracks with transverse momentum less than 120 MeV in the BESⅢ Main Drift Chamber （MDC）, a specialized method called TCurlFinder was developed. This tracking method focuses on the charged track reconstruction under 120 MeV and possesses a special mechanism to reject background noise hits. The performance of the package has been carefully checked and tuned by both Monte Carlo data and real data. The study shows that this tracking method could obviously enhance the reconstruction efficiency in the low transverse momentum region, providing physics analysis with more and reliable data.
作者 贾卢魁 毛泽普 李卫东 曹国富 曹学香 邓子艳 何康林 刘春燕 刘怀民 刘秋光 马秋梅 马想 邱进发 田浩来 王纪科 伍灵慧 袁野 臧石磊 张长春 张雷 张瑶 朱凯 邹佳恒
机构地区 Institute of High Energy Physics Graduate University of Chinese Academy of Sciences Purdue University University of Colorado Nanjing University
出处 《Chinese Physics C》 SCIE CAS CSCD 2010年第12期1866-1873,共8页 中国物理C（英文版）
基金 Supported by National Natural Science Foundation of China (10821063, 10875141, 10705034, 10605030) Ministry of Science and Technology of China (2009CB825200) Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program (KJCX2-YW-N29, KJCX2-YW-N45) United States Department of Energy (DE-FG02-91ER40682)
关键词 BESⅢ MDC low transverse momentum track reconstruction BESⅢ MDC, low transverse momentum, track reconstruction
分类号 O572.212 [理学—粒子物理与原子核物理]
  • 相关文献

参考文献6

  • 1WANG Yi-Fang.The Construction of the BESⅢ Experienment,arXiv:hep-ex/0701010v1.
  • 2BEPC Ⅱ Preliminary Design Report.2002.
  • 3BESⅢ Design Report.Interior Document in Institute of High Energy Physics,2004.
  • 4LIU Qiu-Guang et al.Chinese Physics C(HEP & NP),2008,32(07):565-571.
  • 5Ohnishi Y.Track parametrization,Belle note #148.
  • 6Tanaka J.Fast Tracker For the Drift Chamber,Belle note #222.

同被引文献15

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引证文献3

二级引证文献1

Chinese Physics C
2010年 第12期

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