摘要
在北京谱仪亮度监测器和北京正负电子对撞机实际运行参数的条件下，利用精确到α３项的Ｂｈａｂｈａ事例产生器，计算了亮度监测器的等效积分截面，用它计算北京正负电子对撞机的亮度，其系统误差＜３％，实测数据与计算结果有很好的一致性．
With a Bhabha events generator the Bhabha scattering effective integral cross section for Beijing Spectrometer(BES)luminosity monitor is calculated based on the parameters of the monitor and Beijing Electron-Positron Collider(BEPC)beams.This cross section value can be used for calculating the luminosity of BEPC beams with the systematic error less than 3%.The measured data are in good agreement with the calculation.
出处
《高能物理与核物理》
CSCD
北大核心
1994年第6期503-510,共8页
High Energy Physics and Nuclear Physics
关键词
Bhabha散射
亮度
北京谱仪
监测器
Bhabha scattering cross section,luminosity, Monte Carlo method,Beijing Spectrometer
