Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays
Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays
复制标题
CMS 硅追踪器在宇宙射线调试期间的对准
DOI：
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Cms Collaboration
中科院分区：
文献类型：
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作者：
Cms Collaboration
CMS硅跟踪器由1440个硅像素和15148个硅条探测器模块组成，已使用300多万个宇宙射线带电粒子进行了校准，并提供了光学测量的额外信息。模块的位置是相对于宇宙射线轨迹确定的，在最敏感的坐标中，桶中的平均精度为3-4微米RMS，端盖中的平均精度为3-14微米RMS。结果已被验证的几项研究，包括激光束交叉检查，跟踪拟合自一致性，跟踪残差重叠模块区域，和跟踪参数分辨率，并与从模拟获得的预测进行比较。相关的系统效应进行了研究。利用该对准方法获得的轨道参数分辨率接近设计性能。
The CMS silicon tracker, consisting of 1440 silicon pixel and 15 148 silicon strip detector modules, has been aligned using more than three million cosmic ray charged particles, with additional information from optical surveys. The positions of the modules were determined with respect to cosmic ray trajectories to an average precision of 3–4 microns RMS in the barrel and 3–14 microns RMS in the endcap in the most sensitive coordinate. The results have been validated by several studies, including laser beam cross-checks, track fit self-consistency, track residuals in overlapping module regions, and track parameter resolution, and are compared with predictions obtained from simulation. Correlated systematic effects have been investigated. The track parameter resolutions obtained with this alignment are close to the design performance.
CMS 实验的调试和四特斯拉的宇宙运行
影响因子：
1.3
作者：
Collaboration C
通讯作者：
Collaboration C