Research on the Software of Track Reconstruction in Vertex Chamber of BESII

Details Research on the Software of Track Reconstruction in Vertex Chamber of BESII Research on the Software of Track Reconstruction in Vertex Chamber of BESII

2003-12-03

arxiv.org/abs/physics/0312015v1

High Energy Phys.Nucl.Phys. 27 (2003) 808-812

Physics

Instrumentation and Detectors

6 pages, 5 figures, published in High Energy Phys. and Nucl. Phys.,2003,27(9)

Scientific paper

The software of track reconstruction of the vertex chamber of BESII-VCJULI was studied when it was transplanted from the HP-Unix platform to PC-Linux. The problems of distinct dictionary storage and precision treatment in these two different platforms were found and settled in the modified software. Then the obvious differences of the candidate track number in an event and some track parameters caused by them were reduced from 74% to 0.02% and from 5% to 0.5%, respectively. As a result, the quality of the track finding was greatly improved and the CPU time saved.

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