摘要
首次实现了将北京谱仪 -Ⅱ (BESⅡ )的两种探测器 (主漂移室和顶点探测器 )中的带电径迹联合起来一起重建 ,并给出了相应的离线刻度方法 .经过真实数据和蒙特卡罗样本的检查 ,联合重建后BESⅡ带电粒子的动量分辨提高了 2 0 %以上 ,结果证明本文采用的联合重建和离线刻度方法是有效的 .
The method of combinative track reconstruction with the hits in main drift chamber and vertex chamber at BESⅡ detector is described, and the corresponding calibration method is also given. Checked by experimental data and Monte Carlo generated data, the results show that the correctness and reliability of these methods have been proved, and the momentum resolution for charged particles has been improved by more than 20%.
出处
《高能物理与核物理》
CSCD
北大核心
2004年第12期1264-1268,共5页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金 (199914 80 )资助~~
