Chinese Physics C > 2004, Vol. 28 > Issue(7): 738-743

Weight of dE/dx and TOF in Particle Identification

School of Physical Science and Technology,Nanjing Normal University,Nanjing 210097,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
In the analysis of Beijing Spectrometer (BES) data, the dE/dx and TOF information have been used in the particle identification. When combining the dE/dx and TOF information to do the particle identification, the χ ²of dE/dx and TOF are usually added with equal weight. But the particle identification capability of dE/dx and TOF is different in different momentum region. In this paper, we give the weights of dE/dx and TOF in different momentum region and form a new variable which uses different weights for dE/dx and TOF informations to do the particle identification.

References

[1]

. BAI J Z et al (BES Collaboration) . Nucl . Instrum. Methods , 2001 A458 :6272. PENG Hai-Ping et al. HEP NP , 2002 , 26 :1078 —1086 (in Chinese) (彭海平等,高能物理与核物理, 2002 , 26 :1078 —1086)3. PENG Hai-Ping et al . HEP NP , 2002 , 26 :861 —869 (in Chinese) (彭海平等,高能物理与核物理, 2002 , 26 :861 —869)4. Barate R et al (ALEPH Collaboratory) . Phys. Lett. , 2000 , B 487 :2535. Barate R et al (ACEPH Collaboratory) . Phys. Lett . , 2001 , B 499 :53

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[2]	LI Shao-Li,HENG Yue-Kun,ZHAO Tian-Chi,FU Zai-Wei,LIU Shu-Lin,QIAN Sen,LIU Shu-Dong,CHEN Xiao-Hui,JIA Ru,HUANG Guo-Rui,LEI Xiang-Cui. Method for improving the time resolution of TOF system. Chinese Physics C, 2013, 37(1): 016003.doi:10.1088/1674-1137/37/1/016003
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[4]	CAO Xue-Xiang,LI Wei-Dong,Roy A,LIU Chun-Lei,MAO Ze-Pu,CHEN Shen-Jian,DENG Zi-Yan,HE Kang-Lin,HUANG Xing-Tao,HUANG Bin,HUANG Yan-Ping,JIA Lu-Kui,JI Xiao-Bin,LI Xiu-Rong,LIU Chun-Yan,LIU Huai-Min,MA Qiu-Mei,MA Xiang,QIU Jin-Fa,WANG Da-Yong,WU Ling-Hui,WU Zhi,YUAN Ye,ZHANG Xue-Yao,ZHAO Chuan,ZHANG Yao,ZOU Jia-Heng. Studies of dE/dxmeasurements with the BESⅢ. Chinese Physics C, 2010, 34(12): 1852-1859.
[5]	SUN Yong-Zhao,HE Kang-Lin,LI Wei-Dong,BIAN Jian-Ming,CAO Guo-Fu,DENG Zi-Yan,HE Miao,HUANG Bin,JI Xiao-Bin,LI Gang,LI Hai-Bo,LIU Chun-Xiu,LIU Hua,,,. Search for D⁰-D⁰Mixing with Double-Layer TOF at BESⅢ. Chinese Physics C, 2007, 31(5): 423-430.
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[8]	LI Xin,WU Chong,AN Shao-Hui,TANG Ze-Bo,CHEN Hong-Fang,LI Cheng. The Monte Carlo Simulation of BESⅢ Ead cap TOF. Chinese Physics C, 2005, 29(6): 586-591.
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[10]	LIU Fang,HE Kang-Lin,SUN Sheng-Sen,YANG Fan,ZHENG Zhi-Peng,LI Jin. Using the Q of TOF to Identify the Particles. Chinese Physics C, 2005, 29(8): 781-786.
[11]	XIN Bo,YUAN Chang-Zheng,MA Feng-Cai. Multi-Variable Particle ID for BESⅡ Physics Analysis. Chinese Physics C, 2004, 28(6): 621-625.
[12]	PENG Hai-Ping,SHEN Xiao-Yan,LI Hai-Bo,ZHANG Zi-Ping,CHEN Hong-Fang,YE Shu-Wei. Corrections to BESⅡ TOF Time and Its Resolution. Chinese Physics C, 2002, 26(10): 1078-1086.
[13]	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. Data Offline Calibration for the BES-Ⅱ TOF System. Chinese Physics C, 2001, 25(2): 154-159.
[14]	LV Junguang,Hu Jingliang,Zheng Yangheng,Li Jin. Performance Study of Double-layer TOF Detector. Chinese Physics C, 1999, 23(6): 505-511.
[15]	Li Jiaxing,Zhan Wenlong,Guo Zhongyan,Sun Zhiyu,Xiao Guoqing,Wang Jinchuan,Meng Xiangwei,Jiang Shanhong,Qin Lijun,Zhang Wansheng,Wang Quanjin. TOF Measurement in RIBLL. Chinese Physics C, 1999, 23(3): 231-236.
[16]	Rong Gang,Ma Jimao,Mao Huishun,Bai Jingzhi,Xie Peipei,Yan Jie,Wang Yunyong,Mao Zepu,Liu Rongguang,Sun Shijun,Li Weiguo,Song Xiaofei,Wu Zhengdong. Study of Particle Identification Using dE/dxMeasurement in the BES Large Cylindrical Drift Chamber. Chinese Physics C, 1996, 20(S3): 213-224.
[17]	Rong Gang,Ma Jimao,Mao Huishun,Bai JingZhi,Xie Peipei,Yan Jie,Wang Yunyong,Mao Zepu,Liu Rongguang,Sun Shijun,Li Weiguo,Song Xiaofei,Wu Zhendong. Study of Particle Identification Using dE/dxin the BES Large Cylindrical Drift Chamber. Chinese Physics C, 1996, 20(7): 577-587.
[18]	RONG Gang,CA Ji-Mao,MAO Hu-Shun,WANG Tai-Jie,BAI Jing-Zhi,LI Wei-Guo. Application of dE/dx Method for e/π Identification to the Measurement of the Mass of τ Heavy Lepton by BES. Chinese Physics C, 1993, 17(10): 865-872.
[19]	LIU Guan-Hua,GUO Zhong-Yan,ZHAN Wen-Long,ZHU Yong-Tai,HU Xiao-Qing,XI Hong-Fei,ZHOU Jian-Qun,FENG En-Pu. BaF₂Used for Particle Identification in Intermediate Energy Heavy Ion Raactions. Chinese Physics C, 1992, 16(11): 1030-1034.
[20]	MAO Hui-Shun. ESTIMATION OF ENERGY LOSS dE/dX AT MAIN DRIFT CHAMBEROF BEIJING SPECTROMETER. Chinese Physics C, 1986, 10(6): 752-756.

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QIN Hu, DONG Liao-Yuan, SHEN Xiao-Yan, JIN Shan and LUO Cheng-Lin. Weight of dE/dx and TOF in Particle Identification[J]. Chinese Physics C, 2004, 28(7): 738-743.

QIN Hu, DONG Liao-Yuan, SHEN Xiao-Yan, JIN Shan and LUO Cheng-Lin. Weight of dE/dx and TOF in Particle Identification[J]. Chinese Physics C, 2004, 28(7): 738-743. shu

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Received: 2003-09-28
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

Weight of dE/dx and TOF in Particle Identification

Corresponding author:QIN Hu,

School of Physical Science and Technology,Nanjing Normal University,Nanjing 210097,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date:2003-09-28

Accepted Date:1900-01-01

Available Online:2004-07-05

Abstract:In the analysis of Beijing Spectrometer (BES) data, the dE/dx and TOF information have been used in the particle identification. When combining the dE/dx and TOF information to do the particle identification, the χ²of dE/dx and TOF are usually added with equal weight. But the particle identification capability of dE/dx and TOF is different in different momentum region. In this paper, we give the weights of dE/dx and TOF in different momentum region and form a new variable which uses different weights for dE/dx and TOF informations to do the particle identification.

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Weight of dE/dx and TOF in Particle Identification

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通讯作者:陈斌, bchen63@163.com

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