精品文档---下载后可任意编辑BESⅢ 漂移室径迹重建及离线数据处理系统的讨论开题报告标题：BESIII 漂移室径迹重建及离线数据处理系统的讨论摘要：本文讨论的是 BESIII 实验的漂移室径迹重建及离线数据处理系统。BESIII 实验是中国科学院高能物理讨论所在北京的一项大型粒子物理实验，具有极高的能量精度和灵敏度。漂移室作为 BESIII 实验的主要探测器之一，用于检测带电粒子径迹及其动量信息，在实验中具有重要的作用。本文首先介绍了漂移室探测器的工作原理和径迹重建原理，结合实际数据，分析了径迹重建的基本流程和主要问题，即多次散射、基线漂移、宇宙线干扰等。然后，详细介绍了漂移室径迹重建及离线数据处理系统的设计与实现，包括数值模拟、数据处理、拟合优化等方面。最后，通过实验数据的分析与比较，验证了本文所提出的径迹重建算法和离线数据处理系统的可行性和有效性。关键字：BESIII 实验；漂移室；径迹重建；离线数据处理Abstract:The research topic of this thesis is the drift chamber track reconstruction and offline data processing system of BESIII experiment. BESIII experiment is a large-scale particle physics experiment conducted by the Institute of High Energy Physics of the Chinese Academy of Sciences in Beijing, China, and has extremely high energy precision and sensitivity. As one of the main detectors of BESIII experiment, the drift chamber is used to detect the charged particle track and its momentum information, and plays an important role in the experiment.This thesis first introduces the working principle of the drift chamber detector and the track reconstruction principle, and analyzes the basic process and main problems of track reconstruction with the practical data, including multiple scattering, baseline drift, cosmic ray interference, etc. Then, the design and implementation of the drift chamber track reconstruction and offline data processing system are described in detail, including numerical simulation, data processing, and fitting optimization. Finally, the feasibility and 精品文档---下载后可任意编辑effectiveness of the track reconstruction algorithm and offline data processing system proposed in this thesis are verified through the analysis and comparison of experimental data.Keywords: BESIII experiment; drift chamber; track reconstruction; offline data processing.
