Data Offline Calibration for the BES-Ⅱ TOF System

RONG Gang; ZHAO Jia-Wei; LIU Qi; XUE Sheng-Tian; CHEN Guang-Pei; LI Pei-Qin; LIU Jing; MAO Ze-Pu; LI Wei-Guo; QIU Jin-Fa; XU Chun-Cheng; XIE Yue-Hong; YUAN Ye; ZHAO Hai-Wen

Chinese Physics C> 2001, Vol. 25> Issue(2) : 154-159

Data Offline Calibration for the BES-Ⅱ TOF System

Institute of High Energy Physics, CAS, 100039 Beijing, China1 Department of Modern Physics, University of Science and Technology of Chins, Hefei 230026, China

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Abstract：
Data offline calibration and reconstruction for the BES-Ⅱ TOF system are reported in this paper. After applying calibration constants to correct the measured raw data, a the resolution of 180 ps is obtained for the new TOF system. The power of charged particle identification is improved. The momentum for the 3σπ/K separation goes up to 0.93 GeV/c.

References

[1]

BAI Jing–Zhi et al (BES Collaboration). BES Upgrade, N. I. M., to be submitted 2 MAO Ze–Pu et al. HEP NP, 1996, 20:1073–1081(in Chinese)(毛泽普等. 高能物理与核物理,1996,20:1073—1081)3 RONG Gang. Status of BES–Ⅱ TOF Data (Spring 1998) Offline Calibration and Reconstruction. In: Procedings ofthe 7th BES Annual Meeting. 17–19 June 1998, Datong, BES –Ⅱ TOF Data Offline Calibration, BES–Ⅱ Note,June, 1996

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RONG Gang, ZHAO Jia-Wei, LIU Qi, XUE Sheng-Tian, CHEN Guang-Pei, LI Pei-Qin, LIU Jing, MAO Ze-Pu, LI Wei-Guo, QIU Jin-Fa, XU Chun-Cheng, XIE Yue-Hong, YUAN Ye and ZHAO Hai-Wen. Data Offline Calibration for the BES-Ⅱ TOF System[J]. Chinese Physics C, 2001, 25(2): 154-159.

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Received: 2000-02-12
Revised: 1900-01-01

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