论文标题
BEPCII的光束背景模拟和实验
Beam Background Simulation and Experiment at BEPCII
论文作者
论文摘要
高级光束背景是对BEPCII对撞机的未来升级的至关重要的挑战。我们在BEPCII上报告了对主梁背景组件的第一个单独测量。分离测量可以使梁背景向升级的BEPCII假定的光束参数外推。每个背景组件的测量率也与基于SAD和GEANT4的全新模拟进行了比较。实验和仿真之间的差异仍然是1 $ \ sim $ 2 $ 2 $ 2在用梁寿命进行校准后，应进一步研究。
A high-level beam background is a crucial challenge to future upgrades to the BEPCII collider. We report on the first separate measurement of the main beam background components at BEPCII. The separation measurement enables the beam background extrapolation towards the beam parameters assumed for the upgraded BEPCII. The measured rates of each background component are also compared with a brand-new simulation based on SAD and Geant4. The discrepancy between experiment and simulation remains 1$\sim$2 magnitudes after calibration with beam lifetime, which should be further investigated.
