Track reconstruction using the TSF method for the BESⅢ main drift chamber

We describe the algorithm to reconstruct the charged tracks for BESⅢ main drift chamber at BEPCⅡ, including the track finding and fitting. With a new method of the Track Segment Finder (TSF),the results of present study indicate that the algorithm can reconstruct the charged tracks over a wide range of momentum with high efficiency, while improving the robustness against the background noise in the drift chamber. The overall performances, including spatial resolution, momentum resolution and secondary vertices reconstruction efficiency, etc. satisfy the requirements of BESⅢ experiment.

作 者： LIU Qiu-Guang ZANG Shi-Lei LI Wei-Guo MAO Ze-Pu BIAN Jian-Ming CAO Guo-Fu CAO Xue-Xiang CHEN Shen-Jian DENG Zi-Yan FU Cheng-Dong GAO Yuan-Ning HE Kang-Lin HE Miao HUA Chun-Fei HUANG Bin HUANG Xing-Tao JI Xiao-Bin LI Fei LI Hai-Bo LI Wei-Dong LIANG Yu-Wie LIU Chun-Xiu LIU Huai-Min LIU Suo LIU Ying-Jie MA Qiu-Mei MA Xiang MAO Ya-Jun MO Xiao-Hu PAN Ming-Hua PANG Cai-Ying PING Rong-Gang QIN Gang QIN Ya-Hong QIU Jin-Fa SUN Sheng-Sen SUN Yong-Zhao WANG Ji-Ke WANG Liang-Liang WEN Shuo-Pin WU Ling-Sui XIE Yu-Guang XU Min YAN Liang YOU Zheng-Yun YU Guo-Wei YUAN Chang-Zheng YUAN Ye ZHANG Bing-Yun ZHANG Chang-Chun ZHANG Jian-Yong ZHANG Xue-Yao ZHANG Yao ZHENG Yang-Heng ZHU Ke-Jun ZHU Yong-Sheng ZHU Zhi-Li ZOU Jia-Heng   作者單位： LIU Qiu-Guang,BIAN Jian-Ming,CAO Guo-Fu,CAO Xue-Xiang,HE Miao,HUANG Bin,MA Xiang,QIN Gang,SUN Yong-Zhao,WANG Ji-Ke,WANG Liang-Liang,XIE Yu-Guang,YAN Liang(Institute of High Energy Physics, CAS, Beijing 100049, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China)

ZANG Shi-Lei(University of Colorado, Boulder, Colorado 80309, USA)

LI Wei-Guo,MAO Ze-Pu,DENG Zi-Yan,HE Kang-Lin,JI Xiao-Bin,LI Fei,LI Hai-Bo,LI Wei-Dong,LIU Chun-Xiu,LIU Huai-Min,LIU Ying-Jie,MA Qiu-Mei,MO Xiao-Hu,PING Rong-Gang,QIU Jin-Fa,SUN Sheng-Sen,WEN Shuo-Pin,WU Ling-Sui,YU Guo-Wei,YUAN Chang-Zheng,YUAN Ye,ZHANG Bing-Yun,ZHANG Chang-Chun,ZHANG Yao,ZHU Ke-Jun,ZHU Yong-Sheng(Institute of High Energy Physics, CAS, Beijing 100049, China)

CHEN Shen-Jian(Nanjing University, Nanjing 210093, China)

FU Cheng-Dong(Tsinghua University, Beijing 100084, China;Institute of High Energy Physics, CAS, Beijing 100049, China)

GAO Yuan-Ning(Tsinghua University, Beijing 100084, China)

HUA Chun-Fei,QIN Ya-Hong(Zhengzhou University, Zhengzhou 450001, China)

HUANG Xing-Tao,ZHANG Xue-Yao,ZOU Jia-Heng(Shandong University, Jinan 250100, China)

LIANG Yu-Wie,MAO Ya-Jun,YOU Zheng-Yun(Peking University, Beijing 100871, China)

LIU Suo(Liaoning University, Shenyang 110036, China)

PAN Ming-Hua,PANG Cai-Ying,ZHU Zhi-Li(Guangxi Normal University, Guilin 541004, China)

XU Min(Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China)

ZHANG Jian-Yong(Institute of High Energy Physics, CAS, Beijing 100049, China;CCAST(World Laboratory), Beijing 100080, China)

ZHENG Yang-Heng(Graduate University of Chinese Academy of Sciences, Beijing 100049, China) 

刊 名： 中國物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2008 32(7)  分類號： O4  關(guān)鍵詞： BESⅢ detector   track reconstruction   track segment finder   conformal transformation   secondary vertex  

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