BESIII track extrapolation and matching

BESIII track extrapolation and matching
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DOI：
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发表时间：
2007
期刊：
High Energy Physics and Nuclear Physics
影响因子：
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通讯作者：
王亮亮;苑长征;马秋梅;马想;王大勇;邓子艳;毛泽普;文硕频;孙永昭;刘怀民;刘春秀;李卫东;伍灵慧;张长春;邱进发;何康林;何苗;季晓斌;郑直;俞国威;袁野;谢宇广;臧石磊;L. Wang;C. Yuan;Q. Ma;X. Ma;Dan Wang;Z. Deng;Z. You;Z. Mao;S. Wen;Y. Sun;H. Liu;C. Liu;Wei Li;L. Wu;C. Zhang;J. Qiu;K. He;M. He;X. Zhang;Y. Zhang;X. Ji;Z. Zheng;Y. Mao;G. Yu;Y. Yuan;L. Jiang;Y. Xie;S. Zang
王亮亮;苑长征;马秋梅;马想;王大勇;邓子艳;毛泽普;文硕频;孙永昭;刘怀民;刘春秀;李卫东;伍灵慧;张长春;邱进发;何康林;何苗;季晓斌;郑直;俞国威;袁野;谢宇广;臧石磊;L. Wang;C. Yuan;Q. Ma;X. Ma;Dan Wang;Z. Deng;Z. You;Z. Mao;S. Wen;Y. Sun;H. Liu;C. Liu;Wei Li;L. Wu;C. Zhang;J. Qiu;K. He;M. He;X. Zhang;Y. Zhang;X. Ji;Z. Zheng;Y. Mao;G. Yu;Y. Yuan;L. Jiang;Y. Xie;S. Zang
中科院分区：
其他
文献类型：
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作者：
王亮亮;苑长征;马秋梅;马想;王大勇;邓子艳;毛泽普;文硕频;孙永昭;刘怀民;刘春秀;李卫东;伍灵慧;张长春;邱进发;何康林;何苗;季晓斌;郑直;俞国威;袁野;谢宇广;臧石磊;L. Wang;C. Yuan;Q. Ma;X. Ma;Dan Wang;Z. Deng;Z. You;Z. Mao;S. Wen;Y. Sun;H. Liu;C. Liu;Wei Li;L. Wu;C. Zhang;J. Qiu;K. He;M. He;X. Zhang;Y. Zhang;X. Ji;Z. Zheng;Y. Mao;G. Yu;Y. Yuan;L. Jiang;Y. Xie;S. Zang

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开发了一个基于GEANT4的面向对象软件包TrkExtAlg，用于将BESIII MDC轨道外推到外部子探测器中。该算法考虑了BESIII探测器中粒子的磁偏转和电离损失，给出了探测器外各子探测器中轨迹的位置和动量，以及考虑多重散射效应的任意命中点处的误差矩阵。通过将航迹外推结果与全仿真结果进行比较，并对外部子探测器命中航迹匹配结果及应用进行验证，证明了TrkExtAlg算法的可靠性。
A GEANT4 based, Object-Oriented package, TrkExtAlg, is developed for extrapolating the BESIII MDC track into outer sub-detectors. The magnetic deflection and ionization loss of the particle in the BESIII detector is considered, the algorithm supplies the position and the momentum of the track in all the outer sub-detectors, as well as the error matrix at any given hit point with the multiple scattering effect taken into account. Through comparing the results of track extrapolation with the results of a full simulation and checking the results and application of track matching with hits in outer sub-detectors, TrkExtAlg is proved to be reliable.