BESⅢ track fitting algorithm

WANG Ji-Ke; MAO Ze-Pu; BIAN Jian-Ming; CAO Guo-Fu

doi:10.1088/1674-1137/33/10/010

Chinese Physics C> 2009, Vol. 33> Issue(10) : 870-879 DOI: 10.1088/1674-1137/33/10/010

BESⅢ track fitting algorithm

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Abstract：
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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WANG Ji-Ke, MAO Ze-Pu, BIAN Jian-Ming and CAO Guo-Fu. BESⅢ track fitting algorithm[J]. Chinese Physics C, 2009, 33(10): 870-879. doi: 10.1088/1674-1137/33/10/010

WANG Ji-Ke, MAO Ze-Pu, BIAN Jian-Ming and CAO Guo-Fu. BESⅢ track fitting algorithm[J]. Chinese Physics C, 2009, 33(10): 870-879. doi: 10.1088/1674-1137/33/10/010 shu

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Received: 2009-01-12
Revised: 2009-02-05

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