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

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-Tie; 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-Hui; 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

doi:10.1088/1674-1137/32/7/011

Chinese Physics C

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

Liu Qiu-Guang^1,2, Zang Shi-Lei³, Li Wei-Guo¹, Mao Ze-Pu¹, Bian Jian-Ming^1,2, Cao Guo-Fu^1,2, Cao Xue-Xiang^1,2, Chen Shen-Jian⁵, Deng Zi-Yan¹, Fu Cheng-Dong^1,4, Gao Yuan-Ning⁴, He Kang-Lin¹, He Miao^1,2, Hua Chun-Fei⁶, Huang Bin^1,2, Huang Xing-Tao¹¹, Ji Xiao-Bin¹, Li Fei¹, Li Hai-Bo¹, Li Wei-Dong¹, Liang Yu-Tie⁷, Liu Chun-Xiu¹, Liu Huai-Min¹, Liu Suo⁸, Liu Ying-Jie¹, Ma Qiu-Mei¹, Ma Xiang^1,2, Mao Ya-Jun⁷, Mo Xiao-Hu¹, Pan Ming-Hua⁹, Pang Cai-Ying⁹, Ping Rong-Gang¹, Qin Gang^1,2, Qin Ya-Hong⁶, Qiu Jin-Fa¹, Sun Sheng-Sen¹, Sun Yong-Zhao^1,2, Wang Ji-Ke^1,2, Wang Liang-Liang^1,2, Wen Shuo-Pin¹, Wu Ling-Hui¹, Xie Yu-Guang^1,2, Xu Min¹⁰, Yan Liang^1,2, You Zheng-Yun⁷, Yu Guo-Wei¹, Yuan Chang-Zheng¹, Yuan Ye¹, Zhang Bing-Yun¹, Zhang Chang-Chun¹, Zhang Jian-Yong^1,12, Zhang Xue-Yao¹¹, Zhang Yao¹, Zheng Yang-Heng², Zhu Ke-Jun¹, Zhu Yong-Sheng¹, Zhu Zhi-Li⁹ and Zou Jia-Heng¹¹

2008 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences
Chinese Physics C, Volume 32, Number 7 Citation Liu Qiu-Guang et al 2008 Chinese Phys. C 32 565 DOI 10.1088/1674-1137/32/7/011

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¹ Institute of High Energy Physics, CAS, Beijing 100049, China

² Graduate University of Chinese Academy of Sciences, Beijing 100049, China

³ University of Colorado, Boulder, Colorado 80309, USA

⁴ Tsinghua University, Beijing 100084, China

⁵ Nanjing University, Nanjing 210093, China

⁶ Zhengzhou University, Zhengzhou 450001, China

⁷ Peking University, Beijing 100871, China

⁸ Liaoning University, Shenyang 110036, China

⁹ Guangxi Normal University, Guilin 541004, China

¹⁰ Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

¹¹ Shandong University, Jinan 250100, China

¹² CCAST(World Laboratory), Beijing 100080, China

Dates

Received 27 September 2007

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Abstract

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.

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*
Supported by CAS Knowledge Innovation Project (U-602, U-34), National Natural Science Foundation of China (10491300, 10491303, 10605030) and 100 Talents Program of CAS (U-25, U-54)