Multi-Variable Particle ID for BESⅡ Physics Analysis

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XIN Bo, YUAN Chang-Zheng and MA Feng-Cai. Multi-Variable Particle ID for BESⅡ Physics Analysis[J]. Chinese Physics C, 2004, 28(6): 621-625.
XIN Bo, YUAN Chang-Zheng and MA Feng-Cai. Multi-Variable Particle ID for BESⅡ Physics Analysis[J]. Chinese Physics C, 2004, 28(6): 621-625. shu
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Received: 2003-11-10
Revised: 1900-01-01
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Multi-Variable Particle ID for BESⅡ Physics Analysis

    Corresponding author: XIN Bo,
  • Department of Physics,Liaoning University,Shenyang 110036,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

Abstract: A multi-variable particle identification method is developed for the BESⅡ physics analysis. Besides the traditionally used TOF-T and dE/dx information, TOF-Q and BSC-E are also used to improve the particle discrimination ability. It is shown that the particle identification efficiency, misidentification probability and systematic error could be improved with this new method. The multi-variable method can be extended to even more variables, and can be used in other experiments.

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