Improvement of main drift chamber Monte-Carlo tuning model at BESⅢ

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ZHANG Rui, XIAO Dong, AN Fen-Fen, GAO Yuan-Ning, HE Kang-Lin, JI Xiao-Bin, JIN Shan, LI Wei-Dong, LI Wei-Guo, LIU Huai-Min, LIU Kai, SHEN Xiao-Yan, WANG Yi-Fang, WU Ling-Hui, XU Qing-Nian, YUAN Ye, ZHANG Yao, ZHAO Guang and ZHENG Yang-Heng. Improvement of main drift chamber Monte-Carlo tuning model at BESⅢ[J]. Chinese Physics C, 2014, 38(2): 026201. doi: 10.1088/1674-1137/38/2/026201
ZHANG Rui, XIAO Dong, AN Fen-Fen, GAO Yuan-Ning, HE Kang-Lin, JI Xiao-Bin, JIN Shan, LI Wei-Dong, LI Wei-Guo, LIU Huai-Min, LIU Kai, SHEN Xiao-Yan, WANG Yi-Fang, WU Ling-Hui, XU Qing-Nian, YUAN Ye, ZHANG Yao, ZHAO Guang and ZHENG Yang-Heng. Improvement of main drift chamber Monte-Carlo tuning model at BESⅢ[J]. Chinese Physics C, 2014, 38(2): 026201.  doi: 10.1088/1674-1137/38/2/026201 shu
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Received: 2013-04-22
Revised: 1900-01-01
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Improvement of main drift chamber Monte-Carlo tuning model at BESⅢ

    Corresponding author: ZHANG Rui,
    Corresponding author: YUAN Ye,

Abstract: Based on real data, a new parameterized model of the main drift chamber response is proposed. In this model, we tune the ratio of good hits and the residual distribution separately. By data quality checking, the difference between simulation and data in track reconstruction e ciency reduces from 1% to 0.5% averagely for the pion in J/Ψπ+π-π0, and the momentum resolution agreement improves signi cantly for the proton in J/Ψ→pp.

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