Speaker
Description
In the upgrade of the CMS apparatus for the HL-LHC, an innovative MIP Timing Detector (MTD) will provide unprecedented time measurement capabilities for charged particles. Different sensor technologies will be used in its barrel section, made of LYSO:Ce crystals read by SiPMs, and its endcap, equipped with silicon low-gain avalanche diodes. In both cases, custom ASICs will provide the required output information to achieve a time resolution of O(30 ps) at the beginning of operations per charged track. The primary goal of this information is to mitigate the increased pileup compared to the LHC, while maintaining the competitive performance of the physics reconstruction algorithms. Particle identification will be a natural by-product of proton-proton collisions and will be the main goal of MTD for Heavy-Ion physics. In addition, time measurements will be a new tool for several types of new physics searches. To make this program possible, several developments in detector simulation, reconstruction algorithms, and calibration procedures are being actively pursued to lay the foundations for the realistic use of this innovative detector within a few years. This talk presents an overview of the detector, its construction status, and recent results on the preparation for its commissioning and physics exploitation.
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