节点文献
BES Ⅲ主漂移室基于模式匹配的径迹重建
Pattern-Matching Track Reconstruction for the BES Ⅲ Main Drift Chamber
【摘要】 BESⅢ主漂移室径迹重建算法MdcPatRec,是采用面向对象技术用C++开发的软件.该算法使用模式匹配的方式寻找径迹段,连接径迹段为径迹并进行最小二乘拟合.使用模拟数据对算法进行了检验,结果表明该径迹重建算法能够提供高的重建效率和好的动量分辨,各项指标均达到设计要求.同时具有好的抗噪声能力,可以满足BESⅢ的使用要求.
【Abstract】 The tracking algorithm,MdcPatRec,is developed for the Drift Chamber of the BESⅢdetector using C++ language and object-oriented techniques.This algorithm uses a pattern matching method to find track segments and then combine them into track candidates followed by a least square fit.With the simulation data,the tracking performances such as efficiencies and momentum resolution have been studied and results are consistent with parameters from detector design.The algorithm is also proved to be robust enough to process data with severe background expected by the BESⅢexperiment.
【Key words】 BES Ⅲ; track reconstruction; pattern matching; track fitting;
- 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2007年06期
- 【分类号】O572.214
- 【被引频次】5
- 【下载频次】107