论文标题
使用群集计数技术对besiii漂移室进行粒子识别的仿真研究
Simulation study of particle identification using cluster counting technique for the BESIII drift chamber
论文作者
论文摘要
带电的载体的粒子鉴定，尤其是对于$ k $和$π$的分离，对于风味物理学研究至关重要。与传统的$ de/dx $测量相比，使用集群计数技术的电离测量值预计将为BESIII实验提供更好的粒子识别。模拟研究，包括基于Garfield ++的波形分析和BESIII，离线软件系统中K/π识别的性能研究。结果表明，即使使用保守的分辨率假设，也将在1.2 GEV/C高于1.2 GEV/C的动量范围内，在高于1.2 GEV/C的动量范围内将显着提高$ K/π$分离能力和PID效率。
The particle identification of charged hadrons, especially for the separation of $K$ and $π$, is crucial for the flavour physics study. Ionization measurement with the cluster counting technique, which has much less fluctuation than traditional $dE/dx$ measurement, is expected to provide better particle identification for the BESIII experiment. Simulation studies, including a Garfield++ based waveform analysis and a performance study of K/πidentification in the BESIII, offline software system have been performed. The results show that $K/π$ separation power and PID efficiency would be improved significantly in the momentum range above 1.2 GeV/c using cluster counting technique even with conservative resolution assumption.
