| BESⅢ track fitting algorithm |
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| 引用本文： | 王纪科,毛泽普,边渐鸣,曹国富.BESⅢ track fitting algorithm[J].中国物理 C,2009,33(10):870-879. |
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| 作者姓名： | 王纪科 毛泽普 边渐鸣 曹国富 |
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| 基金项目： | 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） |
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| 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.
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| 关 键 词： | 拟合算法 跟踪 卡尔曼滤波法 能量损失 多重散射 带电粒子 模拟测试 |
| 收稿时间： | 2009-1-12 |
| 修稿时间： | 2009-2-5 |
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