BESⅢ track fitting algorithm  

作　　者：王纪科 毛泽普 边渐鸣 曹国富 曹学香 陈申见 邓子艳 傅成栋 高原宁 何康林 何苗 花春飞 黄彬 黄性涛 季晓斌 李飞 李海波 李卫东 梁羽铁 刘春秀 刘怀民 刘锁 刘英杰 马秋梅 马想 冒亚军 莫晓虎 潘明华 庞彩莹 平荣刚 秦亚红 邱进发 孙胜森 孙永昭 王亮亮 文硕频 伍灵慧 谢宇广 徐敏 严亮 尤郑昀 苑长征 袁野 张炳云 张长春 张建勇 张学尧 张瑶 郑阳恒 朱科军 朱永生 朱志丽 邹佳恒 

机构地区：[1]Institute of High Energy Physics,CAS [2]Graduate University of Chinese Academy of Sciences [3]Nanjing University [4]Tsinghua University [5]Zhengzhou University [6]Shandong University [7]Peking University,Beijing 100871,China [8]Liaoning University [9]Guangxi Normal University [10]Department of Modern Physics,University of Science and Technology of China

出　　处：《Chinese Physics C》2009年第10期870-879,共10页中国物理C（英文版）

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

摘　　要：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.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.

关 键 词：BESⅢ main drift chamber track fitting algorithm Kalman filter method 

分 类 号：O572.214[理学—粒子物理与原子核物理]