Simulation study of real-time monitor for BEPC-Ⅱ luminosity

作     者：SHAN Qing1,2,WU Jian2,XUE Zhen2,XU ZiZong2,HU Tao3,WANG YiFang3 & WANG XiaoLian2 1 College of Material Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China 2 Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China 3 Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China 

作者机构：College of Material Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing China Department of Modern Physics University of Science and Technology of China Hefei China Institute of High Energy Physics Chinese Academy of Sciences Beijing China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2010年第53卷第5期

页      面：1215-1219页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

主　　题：luminosity BEPC-Ⅱ Cherenkov detector radiative Bhabha 

摘      要：A fast and real time luminosity monitor system will be used in the BEPC-Ⅱ(Beijing Electron Positron Collider,China).Photons generated in radiative Bhabha scattering at the interaction point are transformed into charged particles,and then the luminosity of each bunch pair is measured through collecting the Cherenkov light produced by charged particles in fused *** whole process happening in the detector is *** physics acceptance and detection threshold with the monitor accu-racy of 1% are set based on the simulation spectra of photoelectron yield calibrated by e-beam data.