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| Conference Presentation | DESY-2013-00939 |
2013
Abstract: With the upgrade of the LHC to the high-luminosity LHC (HL-LHC), also the tracker system of the CMS experiment will have to be upgraded. The luminosity increase by a factor of five compared to the design luminosity will lead to higher occupancy and radiation levels in the sensors. In order to cope with these, the granularity will be significantly increased and the sensors of the upgraded trackers will have to be cooled to a temperature of -20°C. Moreover, the sensor material and design have to be chosen carefully in order to withstand the anticipated radiation. It is also planned to use information from the tracker in the first level trigger of CMS. For this purpose CMS plans to introduce so-called pT modules which will provide trigger capability. The presentation will introduce the concept of the pT module and give an overview of the ongoing R&D activities concerning the silicon sensor material.
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