Study of the p and p Identification at BES Ⅱ

LI Hui-Hong; LIU Feng; LI Jin; YUAN Chang-Zheng; WANG Zhi-Yong

Chinese Physics C> 2003, Vol. 27> Issue(8) : 659-664

Study of the p and p Identification at BES Ⅱ

Institute of Particle Physics, Hua Zhong Normal University, Wuhan 430079, China2 Institute of High Energy Physics, CAS, Beijing 100039, China3 China Center of Advanced Science and Technology,Beijing 100080,China

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Abstract：
Based on three methods of particle identification (PID) of BES,we study the identification of p and p in momentum range from 0.3 to 1.2 GeV using real particle samples of e,μ,π,K,p and p which were collected in 2-5GeV R scan,J/(ψ) and ψ′ data taking periods. The paper presents the optimized method of PID:p(p) is identified by dE/dx only if momentum below 0.6GeV,and by TOF or the combination of dE/dx and TOF for higher momentum.The PID efficiency of p, p and contamination from the other charged particles are also given.

References

[1]

BAI Jing-Zhi et al.Phys.Rev.Lett.,2002,88:1018022 YUAN Chang-Zheng. Study of Selected Topics in #964;-Charm Energy Region. Postdoctorial Report.1999,283 LI Hui-Hong.The 10th RES Annual Meeting,2001，1734 Sternheimer R M,Peterls R E.Phys.Rev.，1971,3:36815 RONG Gang et al. HEP NP,1996.20:577(in Chinese)(荣刚等.高能物理与核物理，1996 , 211: 577)

[1]	, , . Particle Identification using Artificial Neural Networks at BESIII. Chinese Physics C, 2008, 32(1): 1-8. doi: 10.1088/1674-1137/32/1/001
[2]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[3]	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.
[4]	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.
[5]	HUANG Liang , MAO Ze-Pu , ZHAO Wei-Ren , SUN Liang-Feng , ZHANG Chang-Chun , MA Qiu-Mei , QIU Jin-Fa , HUANG Xiu-Ping , YUAN Ye . Offline Calibration of BES Ⅱ Muon Detector. Chinese Physics C, 2003, 27(11): 949-953.
[6]	DU Shu-Xian , YUAN Chang-Zheng , LIU Jue-Ping , QI Na-Ding . Study of BESⅡ Barrel Shower Counter Performance. Chinese Physics C, 2003, 27(6): 521-525.
[7]	WANG Zheng , YUAN Chang-Zheng , QI Na-Ding . Study of BES Ⅱ Muon Counter Performance. Chinese Physics C, 2003, 27(8): 716-721.
[8]	JI Xiao-Bin , SHEN Xiao-Yan . Performance Study of p,pin BES Ⅱ Detector. Chinese Physics C, 2003, 27(12): 1058-1061.
[9]	PENG Hai-Ping , SHEN Xiao-Yan , YE Shu-Wei , ZHANG Chang-Chun , LV Jun-Guang , LIU Huai-Min , ZHANG Zi-Ping , CHEN Hong-Fang . Some Improvements of BESⅡ TOF Monte Carlo Simulation. Chinese Physics C, 2002, 26(8): 861-869.
[10]	LIU Bin , GUO Ya-Nan , ZHAO Di-Xin , MA En-Cheng , LI De , ZHANG Yue-Yuan , CHEN Xin-Dong . Simulation of BES Trigger. Chinese Physics C, 2001, 25(1): 1-5.
[11]	BES Collaboration . J/ψ Physics at BES. Chinese Physics C, 1999, 23(2): 97-102.
[12]	Chen Jiangchuan , Zhu Yongsheng , Cheng Baosen , Liu Huaimin , Zhang Dahua , Wang Ping , Li Canguo , Huang Yinzhi , Zhang Jinlong . Energy Resolution and Its Simulation for the ESC of BES. Chinese Physics C, 1997, 21(11): 982-989.
[13]	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.
[14]	Chen Hongfang , Chen Shaomin , Chen Xiangyang , Gu Weixin , Lu Feng , Li Yong , Li Peiqin , Li Weiguo , Que Youkun , Mao Zepu , Tong Guoliang , Wang Linzhou , Wu Yigen , Xu Mingkang , Ye Shuwei , Ye Shizhang , Yi Kai , Zhang Yu , Zhou Yuehua , Zhou Li . Study of Energy Response Nonlinearity of BSC at BES. Chinese Physics C, 1996, 20(1): 1-7.
[15]	Gu Jianhui , Yu Zhongqiang . Muon Sample Selection from Cosmic Ray Events for BES. Chinese Physics C, 1996, 20(1): 26-31.
[16]	Jiang Zhijin , Wang Taijie , Huang Tao . Primary Vertex Fitting in BES. Chinese Physics C, 1995, 19(1): 1-7.
[17]	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.
[18]	Ye Shuwei , Chen Hongfang , Wu Jian , Zhang Ziping , Niu Hongquan , Xu Tong , Tong Guoliang , LV Feng , Li Yong , Zeng Jiyang , Wu Yigen , Yi Kai , Chen Xiangyang , Xu Mi . Relative Likelihood and e/π Separation at BES. Chinese Physics C, 1995, 19(12): 1072-1077.
[19]	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.
[20]	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.

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LI Hui-Hong, LIU Feng, LI Jin, YUAN Chang-Zheng and WANG Zhi-Yong. Study of the p and p Identification at BES Ⅱ[J]. Chinese Physics C, 2003, 27(8): 659-664.

LI Hui-Hong, LIU Feng, LI Jin, YUAN Chang-Zheng and WANG Zhi-Yong. Study of the p and p Identification at BES Ⅱ[J]. Chinese Physics C, 2003, 27(8): 659-664. shu

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Received: 2002-12-17
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of the p and p Identification at BES Ⅱ

Corresponding author: LI Hui-Hong,

Institute of Particle Physics, Hua Zhong Normal University, Wuhan 430079, China2 Institute of High Energy Physics, CAS, Beijing 100039, China3 China Center of Advanced Science and Technology,Beijing 100080,China

Received Date: 2002-12-17
Accepted Date: 1900-01-01
Available Online: 2003-08-05

Abstract: Based on three methods of particle identification (PID) of BES,we study the identification of p and p in momentum range from 0.3 to 1.2 GeV using real particle samples of e,μ,π,K,p and p which were collected in 2-5GeV R scan,J/(ψ) and ψ′ data taking periods. The paper presents the optimized method of PID:p(p) is identified by dE/dx only if momentum below 0.6GeV,and by TOF or the combination of dE/dx and TOF for higher momentum.The PID efficiency of p, p and contamination from the other charged particles are also given.