探测器束流相关本底的实验研究  

Study of BES II Backgrounds

作　　者：金大鹏[1] 杨胜东[1] 赵棣新[1] 过雅南[1] 周能锋[1] 王贻芳[1] 刘振安[1] 郁忠强[1] 徐昊[1] 

机构地区：[1]中国科学院高能物理研究所,北京100039

出　　处：《高能物理与核物理》2003年第10期846-851,共6页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(19991480);国家杰出青年科学基金(10225524);中国科学院重大项目基金(KJ95T-03)~~

摘　　要：介绍了在北京正负电子对撞机上进行的束流相关本底实验研究,并与计算结果进行了比较。通过实验获得了束流相关本底的特征;并用相应的软件(TURTLE和GEANT3)对束流-气体相互作用本底进行了细致的模拟。实验和模拟结果的比较表明,现有的软件工具模拟在4倍以内是可靠的,从而为正在设计建造的新一代北京正负电子对撞机和北京谱仪的本底模拟奠定了基础。The BES II backgrounds experiment and simulation are described. In the experiment, we have studied the characteristics of the beam-related backgrounds. In the simulation, we simulate carefully the beam-gas backgrounds with the mature tools-TURTLE and Geant3. Finally, we compare the results of the experiment and those of the simulation, they agree with each other within a factor of 4, which is acceptable in background simulation. This comparison proves the simulation tools are reliable, which makes it possible for us to simulate the beam-related backgrounds of the future BES-BESIII.

关 键 词：北京正负电子对撞机 探测器 北京谱仪 实验研究 束流相关本底 束流-气体相互作用 丝击中率 蒙特卡罗模拟 

分 类 号：O572.2[理学—粒子物理与原子核物理]