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arXiv physics/0510227physics.ins-det
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SLHC上CMS一级跟踪触发器的研究

A Study for a Tracking Trigger at First Level for CMS at SLHC

C. Foudas, A. Rose, J. Jones, G. Hall

摘要:

预计LHC加速器和实验将在运行几年后进行光度升级。LHC的这部分操作被称为超级LHC(SLHC),预计将提供比当前设计大一个数量级的亮度(1035 cm-2 sec-1)的光束。初步结果是从一个可行性研究的第一级跟踪触发CMS在SLHC使用内部跟踪探测器的数据。作为这些研究的模型,使用了具有相同像素大小和距光束径向距离的当前CMS像素检测器。蒙特卡罗研究已经进行了使用完整的CMS模拟包(OSCAR)和这样的探测器在SLHC光束条件下的占用率计算。设计了一个电子触发器,它使用的热量计能量沉积和像素数据,以确定孤立的电子和光子的设计进行了研究。跟踪器占用率和电子触发性能的结果

英文摘要:

It is expected that the LHC accelerator and experiments will undergo a luminosity upgrade which will commence after several years of running. This part of the LHC operations is referred to as Super-LHC (SLHC) and is expected to provide beams of an order of magnitude larger luminosity (1035cm-2sec-1) than the current design. Preliminary results are presented from a feasibility study for a First Level Tracking Trigger for CMS at the SLHC using the data of the inner tracking detector. As a model for these studies the current CMS pixel detector with the same pixel size and radial distances from the beam has been used. Monte Carlo studies have been performed using the full CMS simulation package (OSCAR) and the occupancy of such a detector at SLHC beam conditions has been calculated. The design of an electron trigger which uses both the calorimeter energy depositions and the pixel data to identify isolated electrons and photons has been investigated. Results on the tracker occupancy and the electron trigger performance are presented

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