Feasibility of intercalibration of CMS ECAL supermodules with cosmic rays
Feasibility of intercalibration of CMS ECAL supermodules with cosmic rays
复制标题
CMS ECAL 超级模块与宇宙射线相互校准的可行性
DOI：
10.1140/epjcd/s2005-02-007-y
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
E. Frlež
中科院分区：
文献类型：
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作者：
W. Bertl;K. Deiters;Q. Ingram;D. Renker;T. Sakhelashvili;E. Frlež
摘要：研究了在CMS中安装ECAL超级模块之前，利用宇宙射线进行互校的可行性。在单晶测试中，观察到宽度为15% rms的清晰信号，速率符合预期。使用简化的探测器几何形状和垂直宇宙射线μ子通量的参数化进行的模拟表明，使用周围的晶体作为否决计数器来确保通过晶体的纵向轨迹是可行的，而不会引入大的系统误差。一周的统计误差在1%左右。
Abstract.The feasibility of using cosmic rays to make an intercalibration of the ECAL Supermodules before installation in CMS has been investigated. In a test with a single crystal a clear signal with a width of 15% rms was seen, with rates as expected. Simulations using a simplified detector geometry and a parameterisation of the vertical cosmic ray muon flux indicate that it is feasible to use the surrounding crystals as veto counters to ensure a longitudinal trajectory through the crystal, without introducing a large systematic error. The statistical error would be around 1% for one week of running.