Multi-Variable Particle ID for BESⅡ Physics Analysis

XIN Bo; YUAN Chang-Zheng; MA Feng-Cai

Chinese Physics C> 2004, Vol. 28> Issue(6) : 621-625

Multi-Variable Particle ID for BESⅡ Physics Analysis

Department of Physics,Liaoning University,Shenyang 110036,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

Abstract
HTML
Reference
Related

PDF

Abstract：
A multi-variable particle identification method is developed for the BESⅡ physics analysis. Besides the traditionally used TOF-T and dE/dx information, TOF-Q and BSC-E are also used to improve the particle discrimination ability. It is shown that the particle identification efficiency, misidentification probability and systematic error could be improved with this new method. The multi-variable method can be extended to even more variables, and can be used in other experiments.

References

[1]

. 　BAI J Z et al (BES Collab. ) . Nucl . Instr. Meth. , 2001 , A458 :6272.　ZHENG Zhi-Peng , ZHU Yong-Sheng. Electron2Positron Physics at Beijing Spectrometer 、Guang Xi : Guang Xi Science and Technology Press , 1998. 36 —42 (in Chinese)(郑志鹏,朱永生. 北京谱仪正负电子物理. 广西:广西科学技术出版社,1998. 36 —42)3.　YUAN Chang-Zheng. Ph. D thesis , Beijing : Institute of High Energy Physics , 1997 (in Chinese)(苑长征. 博士学位论文,北京:高能物理研究所,1997)4.　LI Hui-Hong , LIU Feng , LI Jin et al . HEP NP , 2003 , 27 (8) :659 —665(in Chinese)(李会红,刘峰,李金等. 高能物理与核物理,2003 , 27 (8) :659 —665)5.　BAI J Z et al (BES Collab. ) . Phys. Rev. , 2003 , D67 :1120016.　DU Shu-Xian , YUAN Chang-Zheng , LIU Jue-Ping et al . HEP NP ,2003 , 27 (6) :521 —525 (in Chinese)(杜书先,苑长征,刘觉平等. 高能物理与核物理,2003 , 27 (6) :521 —525)7.　WANG Zheng , YUAN Chang-Zheng , QI Na-Ding. HEP NP , 2003 ,27(8) :716 —721 (in Chinese)(王征,苑长征,漆纳丁. 高能物理与核物理,2003 , 27 (8) :716 —721)

[1]	WANG Ji-Ke , MAO Ze-Pu , BIAN Jian-Ming , CAO Guo-Fu . BESⅢ track fitting algorithm. Chinese Physics C, 2009, 33(10): 870-879. doi: 10.1088/1674-1137/33/10/010
[2]	, , . Particle Identification using Artificial Neural Networks at BESIII. Chinese Physics C, 2008, 32(1): 1-8. doi: 10.1088/1674-1137/32/1/001
[3]	LV Hai-Jiang , YE Yun-Xiu , YAN Xin-Hu , JIANG Yi , ZHANG Pei , YE Qiu-Jian . Particle Identification and Its Efficiency for Small Angle GDH Experiment in JLab Hall-A. Chinese Physics C, 2007, 31(8): 764-768.
[4]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[5]	XU Hao , LIU Zhen-An , JIN Da-Peng , WANG Da-Yong , ZHAO Di-Xin , GUO Ya-Nan . Physical Design of Main Drift Chamber Trigger for BESⅢ Experiment. Chinese Physics C, 2005, 29(4): 376-382.
[6]	LIU Chun-Xiu , FU Cheng-Dong , ZHOU Li , ZHANG Qin-Jian , XIA Xiao-Mi , LAI Yuan-Fen , LI Jin , FANG Jian , CHEN Yuan , CAI Xiao , SHANG Lei , WANG Man , LU Jun-Guang , WANG Yi-Fang . Monte Carlo Study of Performance of BES Ⅲ CsI Crystal Calorimeter. Chinese Physics C, 2004, 28(4): 335-339.
[7]	LIU Ji-Guo , AN Qi . Analysis of the Factors that Influence the Time Resolution of TOF in BESⅢ Detector. Chinese Physics C, 2004, 28(11): 1170-1175.
[8]	QIN Hu , DONG Liao-Yuan , SHEN Xiao-Yan , JIN Shan , LUO Cheng-Lin . Weight of dE/dx and TOF in Particle Identification. Chinese Physics C, 2004, 28(7): 738-743.
[9]	YOU Zheng-Yun , MAO Ya-Jun , ZHANG Jia-Wen . Research on Identification of μ,π with BESⅢ μ Ιdentifier. Chinese Physics C, 2004, 28(9): 977-981.
[10]	ZHANG Zhi-Qing , FANG Shuang-Shi , WEI Dai-Hui , ZHU Yu-Can , LU Gong-Ru . η_c Physics at BESⅢ. Chinese Physics C, 2004, 28(6): 569-575.
[11]	LIU Chun-Xiu , FU Cheng-Dong , ZHOU Li , ZHANG Qin-Jian , XIA Xiao-Mi , LAI Yuan-Fen , LI Jin , FANG Jian , CHEN Yuan , CAI Xiao , SHANG Lei , WANG Man , LU Jun-Guang , WANG Yi-Fang . Optimization in the Design of BESⅢ CsI Crystal Calorimeter. Chinese Physics C, 2003, 27(12): 1114-1118.
[12]	LI Hui-Hong , LIU Feng , LI Jin , YUAN Chang-Zheng , WANG Zhi-Yong . Study of the p and p Identification at BES Ⅱ. Chinese Physics C, 2003, 27(8): 659-664.
[13]	Zhang Ziping , Chen Hongfang , Ye Shuwei , Zhao Jiawei . Identification of e,μ,π by Neural Network in BES. Chinese Physics C, 1997, 21(4): 297-303.
[14]	Liu Lianshou , Wu Yuanfang . On the Choices of Phase Space Variables in the Study of Anomalous Scaling in High Energy Multiparticle Production. Chinese Physics C, 1996, 20(4): 357-362.
[15]	Jiang Zhijin , Wang Taijie , Xie Yigang , Huang Tao . The Use of Discriminant Analysis Method to Particle Separation in BES. Chinese Physics C, 1994, 18(12): 1064-1072.
[16]	SHEN Qi-Xing , YU Hong . Determining the Spin and Parity of Particle X for the Process J/ψ→V₁,X→V₂+V₃ by Using the Generalized Moment Analysis Method. Chinese Physics C, 1993, 17(6): 503-510.
[17]	WANG Jin-Chuan , XI Hong-Fei , GUO Zhong-Yan , ZHAN Wen-Long , ZHU Yong-Tai , ZHOU Jian-Qun , LOU Guan-Hua , SU Hong . Effect of Spectroscopy Amplifier Parameter on Identification of Light Charged Particles by Pulse Shaping Analysis Method. Chinese Physics C, 1993, 17(1): 69-77.
[18]	Zhu Qiming , Zhou Huashi , Jiang Chunhua , Ni Huiling . Determining the Luminosity for BES by Spectrum Analysis of Bhabha Events in Small Angle. Chinese Physics C, 1993, 17(12): 1057-1064.
[19]	FENG Jun , SHEN Wen-Qing , MA Yu-Gang , ZHAN Wen-Long , ZHU Yong-Tai , GUO Zhong-Yan . A Method For Identifying Medium-Heavy Products of Heavy Ion Reaction At SPEG Spectrometer. Chinese Physics C, 1993, 17(9): 769-774.
[20]	LIU Guan-Hua , GUO Zhong-Yan , ZHAN Wen-Long , ZHU Yong-Tai , HU Xiao-Qing , XI Hong-Fei , ZHOU Jian-Qun , FENG En-Pu . BaF₂ Used for Particle Identification in Intermediate Energy Heavy Ion Raactions. Chinese Physics C, 1992, 16(11): 1030-1034.

Access

Get Citation

XIN Bo, YUAN Chang-Zheng and MA Feng-Cai. Multi-Variable Particle ID for BESⅡ Physics Analysis[J]. Chinese Physics C, 2004, 28(6): 621-625.

XIN Bo, YUAN Chang-Zheng and MA Feng-Cai. Multi-Variable Particle ID for BESⅡ Physics Analysis[J]. Chinese Physics C, 2004, 28(6): 621-625. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-11-10
Revised: 1900-01-01

Article Metric

Article Views(3310)
PDF Downloads(585)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Multi-Variable Particle ID for BESⅡ Physics Analysis

Corresponding author: XIN Bo,

Department of Physics,Liaoning University,Shenyang 110036,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 2003-11-10

Accepted Date: 1900-01-01

Available Online: 2004-06-05

Abstract: A multi-variable particle identification method is developed for the BESⅡ physics analysis. Besides the traditionally used TOF-T and dE/dx information, TOF-Q and BSC-E are also used to improve the particle discrimination ability. It is shown that the particle identification efficiency, misidentification probability and systematic error could be improved with this new method. The multi-variable method can be extended to even more variables, and can be used in other experiments.

HTML

Reference (1)

Multi-Variable Particle ID for BESⅡ Physics Analysis

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article