Studies of the performance of the ATLAS detector using cosmic-ray muons
Studies of the performance of the ATLAS detector using cosmic-ray muons
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使用宇宙射线μ子的ATLAS探测器性能研究
DOI：
10.1140/epjc/s10052-011-1593-6
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Aad G
中科院分区：
文献类型：
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作者：
Aad G
来自大气中宇宙射线相互作用的μ子提供了一个高统计量的粒子源，可用于研究ATLAS探测器的性能和校准。宇宙射线μ子可以穿透洞穴并在所有探测器子系统中存款能量。自2005年安装阶段开始以来，这些事件在探测器的调试中发挥了重要作用，对于了解第一批LHC光束到达之前的探测器性能尤为重要。2008年和2009年进行了全球宇宙射线运行，这些数据一直用于碰撞数据采集的早期阶段，作为校准、对准和探测器监测的工具。这些大型数据集也被用于探测器性能研究，包括依赖于不同子系统的综合性能的调查。本文介绍了与联合跟踪、轻子识别、喷流重建和缺失横向能量有关的性能研究结果。结果进行比较的基础上的宇宙射线事件发生器和一个完整的模拟的探测器响应的预期。
Muons from cosmic-ray interactions in the atmosphere provide a high-statistics source of particles that can be used to study the performance and calibration of the ATLAS detector. Cosmic-ray muons can penetrate to the cavern and deposit energy in all detector subsystems. Such events have played an important role in the commissioning of the detector since the start of the installation phase in 2005 and were particularly important for understanding the detector performance in the time prior to the arrival of the first LHC beams. Global cosmic-ray runs were undertaken in both 2008 and 2009 and these data have been used through to the early phases of collision data-taking as a tool for calibration, alignment and detector monitoring. These large datasets have also been used for detector performance studies, including investigations that rely on the combined performance of different subsystems. This paper presents the results of performance studies related to combined tracking, lepton identification and the reconstruction of jets and missing transverse energy. Results are compared to expectations based on a cosmic-ray event generator and a full simulation of the detector response.