Chinese Physics C > 2001, Vol. 25 > Issue(7): 607-616

BESⅡ Error Matrix Correction on Charged Channel

Institute of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
The error matrix correction for charged track parameters of BESⅡ detector is carefully studied. The proper MDC wire spatial resolution (σ=250μm) and Q correction are incorporated into BESⅡ data reconstruction program. The BESⅡ effective material passed through by tracks from interaction point to MDC is taken into account in the kinematics fitting package TELESIS,to correct the multiple scattering and dE/dX energy loss effects. By analyzing the J/ψ→μ ⁺μ ^－data sample,the RUN by RUN error matrix calibration is completed for BESⅡ 24×10 ⁶J/ψ events. After these corrections of the error matrix,TELESIS can be applied to BESⅡ J/ψ data analysis with fairly good accuracy.

References

[1]

. BAI Jing-Zhi et al.NIM ,1994 ,A344 :319— 334 2. BAI Jing-Zhi et al.NIM ,2 0 0 1,A4 58:627 3. LIU Jing et al.High Energy Phys. and Nucl.Phys.,1998,2 2 (7) :587—595(in Chinese)(刘靖等.高能物理与核物理 ,1998,22 (7) :587— 595)4. ZHU Yong-Sheng.Probability and Statistics in Experimetal Physics.Beijing:Science Publisher,1991(in Chinese) ;(朱永生.实验物理中的概率和统计,北京:科学出版社,1991) ;YUAN Chang-Zheng.The Search of Charmonium S Wave Spin Singlet η'c and the Study of P Wave Triplet χCJ,PH.D Thesis,1997(苑长征.粲夸克偶素S波自旋单态 η'c的寻找和相应过程P波三重态χCJ的研究,博士论文,1997)5. Fvodesen A G et al.Probability and Statistics in Particle Physics.1979.Norway 6. Particle Data Group.Phys.Rev.,1996 ,D54 :132

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[9]	Li Haibo,Yuan Changzheng,Li Jin,Li Xinhua. Study of Neutral Track Measurement at BES. Chinese Physics C, 1999, 23(7): 607-615.
[10]	Liu Jing,Mao Zepu,Li Weiguo,Zhang Changchun,Chen Guangpei,Yan Wugung,Li Peiqin,Rong Gang,Zhao Haiwen,Xie Yu. A New Method of Track Finding and Fitting in Main Drift Chamber of BES-Ⅱ. Chinese Physics C, 1998, 22(7): 587-595.
[11]	Chen Guangpei,Yuan Ye,Mao Zepu,Bai Jinzhi,Sun Hansheng,Liu Jing,Li Weiguo,Zhang Changchun,Yan Wuguang,Li Peiqin,Qiu Jinfa,Yang Jie,Yang Chunmin,Rong Gang,Zhen Jianping,Zhao Haiwen,Zhao Meng,Xie Yu. Track Reconstruction in Vertex Chamber of BES-Ⅱ. Chinese Physics C, 1998, 22(11): 982-989.
[12]	BES Collaboration. Measurements of the Branching Ratios for the Decays J/ψ→γπ⁰,γη, γη'→ 3γ at BES. Chinese Physics C, 1997, 21(5): 385-392.
[13]	Yu Zhongqiang,Zhao Dixin,Gu Jianhui,Guo Yanan,Zhang Bingyun,Ding Huiliang,Li Weidong. Trigger Efficiency Measurement of BES. Chinese Physics C, 1995, 19(12): 1062-1067.
[14]	MAO Ze-Pu,WANG Tai-Jie,WANG Shu-Qin,LI Wei-Guo,CHEN Guo-Ming. Track Reconstruction of the BES Main Drift Chamber. Chinese Physics C, 1993, 17(3): 193-201.
[15]	BAI JINGZHI,BIAN QING,CHEN LEJUN,CHEN SHENNAN,CHEN YAQING,CHEN ZHAOQING,CHI YANKUN,CUI HUACHUAN,CUI XIANGZONG,DENG SHUEN,DENG YIWEI,DING HUILIANG,DONG BAOZHAONG,DONG XUESHENG,DU XIA,DU ZHIZHEN,FANG CHENG,FENG ZHONG,FU ZHENGSHAN,GAO CUISHAN,GAO MEILI,GAO SHUQI,GAO WENXIU,GAO YUANNING,GU SHUDI,GU WEIX,,,,,,,,,,,,,,,,,,,. Beijing Spectrometer. Chinese Physics C, 1992, 16(9): 769-789.
[16]	XU Rong-Sheng,LANG Peng-Fei,CHEN Ya-Qing,ZHANG Shao-Qiang,PAN Ling-Jun,WANG Tai-Jie,HUANG De-Qiang,ZHANG Da-Hua,ZHENG Min,JIA Qiu-Ping,HE Ju,GAO Yuan-Ning,HUANG Yin-Zhi,MA En-Cheng,ZHAO Zheng-Guo,LIU Feng,CHEN Shao-Min,ZHANG Xue-Yao,LI Qun. BES Offline Data Processing. Chinese Physics C, 1991, 15(7): 577-583.
[17]	ZHANG Ge,ZHU Shan-Gen,ZHOU Yong-Shen,ZHAO Meng,ZHAO Di-Xin,LI Jia,HAN Shi-Wen,FU Zheng-Shan. Magnetic Axis Measurement in the Solenoid of Beijing Spectrometer. Chinese Physics C, 1991, 15(3): 200-206.
[18]	YAO Nai-Guo,CHEN Ting-Yang. A Three Dimensional Method to Reconstruct the Charged Particle Tracks in the Forward Spectrometer. Chinese Physics C, 1991, 15(9): 769-775.
[19]	CHEN Yuan-Bo,DONG Xue-Sheng,HUANG Yin-Zhi,LI Da-Shi,LIN Wei,LIU Yue-Jun,PAN Zhao-Hui,WU Wei-Min,YANG Chang-You,ZHANG Bing-Yun,ZHANG Chang-Chun,ZHAO Wei-Ren,ZHU Guo-Sheng. THE BES ON-LINE DATA ANALYSIS SYSTEM. Chinese Physics C, 1989, 13(8): 680-688.
[20]	XU Jian-Ming. ANALYSIS OF THE ERRORS OF THE ROTATING COIL MAGNETOMETER. Chinese Physics C, 1989, 13(1): 11-19.

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HONG Tao, LV Feng, ZHANG Chang-Chun, TONG Guo-Liang, SHEN Xiao-Yan, MAO Ze-Pu, LI Wei-Guo, SUN Liang-Feng, BIAN Jian-Guo, WANG Jun, YU Guo-Wei and YUAN Jian-Ming. BESⅡ Error Matrix Correction on Charged Channel[J]. Chinese Physics C, 2001, 25(7): 607-616.

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Received: 2000-10-30
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

BESⅡ Error Matrix Correction on Charged Channel

Corresponding author:LV Feng,

Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date:2000-10-30

Accepted Date:1900-01-01

Available Online:2001-07-05

Abstract:The error matrix correction for charged track parameters of BESⅡ detector is carefully studied. The proper MDC wire spatial resolution (σ=250μm) and Q correction are incorporated into BESⅡ data reconstruction program. The BESⅡ effective material passed through by tracks from interaction point to MDC is taken into account in the kinematics fitting package TELESIS,to correct the multiple scattering and dE/dX energy loss effects. By analyzing the J/ψ→μ⁺μ^－data sample,the RUN by RUN error matrix calibration is completed for BESⅡ 24×10⁶J/ψ events. After these corrections of the error matrix,TELESIS can be applied to BESⅡ J/ψ data analysis with fairly good accuracy.

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BESⅡ Error Matrix Correction on Charged Channel

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