Trigger Efficiency Measurement of BES

Yu Zhongqiang; Zhao Dixin; Gu Jianhui; Guo Yanan; Zhang Bingyun; Ding Huiliang; Li Weidong

Chinese Physics C> 1995, Vol. 19> Issue(12) : 1062-1067

Trigger Efficiency Measurement of BES

Institute of High Energy Physics,The Chinese Academy of Sciences, Beijing 100039

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Abstract：
An experimental method to measure the efficiency of the trigger for the BES is introduced. The design of trigger table, event selection and calculation of efficiency are described. The efficiencies of various trigger conditions and event types are given.

References

[1]	过雅南等，高能物理与核物理，14（1990）1057.[2] 丁慧良等，高能物理与核物理，16（1992）769;J.Z.Bai,Q.Bian,G.M.Chen et al.,Nucl.Instr.Methods,A344（1994）319.[3] 丁慧良、过雅南、杨熙荣等，一台简单的四选三逻辑电路，第三届全国核电子学和探测技术学术会议文集，1986.10.安徽。[4] Zepu Mao et al,Offine Calibration of BES Data,BES Annual Meeting 94/6/30.

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Yu Zhongqiang, Zhao Dixin, Gu Jianhui, Guo Yanan, Zhang Bingyun, Ding Huiliang and Li Weidong. Trigger Efficiency Measurement of BES[J]. Chinese Physics C, 1995, 19(12): 1062-1067.

Yu Zhongqiang, Zhao Dixin, Gu Jianhui, Guo Yanan, Zhang Bingyun, Ding Huiliang and Li Weidong. Trigger Efficiency Measurement of BES[J]. Chinese Physics C, 1995, 19(12): 1062-1067. shu

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Received: 1900-01-01
Revised: 1900-01-01

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