BESⅢ track fitting algorithm

A track fitting algorithm based on the Kalman filter method has been developed for BESⅢ of BEPCⅡ.The effects of multiple scattering and energy loss when the charged particles go through the detector,non-uniformity of magnetic field (NUMF) and wire sag, etc., have been carefully handled.This algorithm works well and the performance satisfies the physical requirements tested by the simulation data.

作 者： WANG Ji-Ke 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-Sin 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 Ya-Hong QIU Jin-Fa SUN Sheng-Sen SUN Yong-Zhao WANG Liang-Liang WEN Shuo-Pin WU Ling-Hui XIE Yu-Guang XU Min YAN Liang YOU Zheng-Yun 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： WANG Ji-Ke,BIAN Jian-Ming,CAO Guo-Fu,CAO Xue-Xiang,HUANG Bin,MA Xiang,WANG Liang-Liang,YAN Liang(Institute of High Energy Physics,CAS,Beijing 100049,China;Graduate University of Chinese Academy of Sciences,Beijing 100049,China)

MAO Ze-Pu,DENG Zi-Yan,HE Kang-Lin,HE Miao,JI Xiao-Sin,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,SUN Yong-Zhao,WEN Shuo-Pin,WU Ling-Hui,XIE Yu-Guang,YUAN Chang-Zheng,YUAN Ye,ZHANG Bing-Yun,ZHANG Chang-Chun,ZHANG Jian-Yong,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-Tie,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)

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)： 2009 33(10)  分類號： O4  關(guān)鍵詞： BESⅢ main drift chamber   track fitting algorithm   Kalman filter method  

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