Correlation analysis in time-of-flight calibration of BESIII

Ji Feng Hu, Kang Lin He, Zi Ping Zhang, Jian Ming Bian, Guo Fu Cao, Zi Yan Deng, Miao He, Bin Huang, Xiao Bin Ji, Gang Li, Hai Bo Li, Wei Dong Li, Chun Xiu Liu, Huai Min Liu, Qiu Mei Ma, Xiang Ma, Ya Jun Mao, Ze Pu Mao, Xiao Hu Mo, Jin Fa QiuSheng Sen Sun, Yong Zhao Sun, Ji Ke Wang, Liang Liang Wang, Shuo Pin Wen, Ling Hui Wu, Yu Guang Xie, Ming Yang, Zheng Yun You, Guo Wei Yu, Chang Zheng Yuan, Ye Yuan, Shi Lei Zang, Chang Chun Zhang, Jian Yong Zhang, Ling Zhang, Xue Yao Zhang, Yao Zhang, Zhi Peng Zheng, Yong Sheng Zhu, Jia Heng Zou

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The errors and correlations of BESIII TOF measurements are carefully checked in hit position at z partitions with the electron-pair events. The measured time-of-flight's and their covariance matrices are subjected to a correlation analysis algorithm which is developed for BESIII to combine the independent measurements with common errors. Monte Carlo studies show that the correlated analysis can provide more reliable TOF information on particle identification.

Original languageEnglish (US)
Pages (from-to)893-899
Number of pages7
JournalKao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics
Volume31
Issue number10
StatePublished - Oct 2007

Keywords

  • Errors and correlations
  • Offline calibration
  • Particle identification
  • Time resolution
  • Time-of-flight

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