Speaker
Description
To cope with the challenging environment of the High-Luminosity Large Hadron Collider (HL-LHC), the CMS Experiment is being upgraded to include the new MIP Timing Detector (MTD). The MTD is designed to mitigate pileup effects by providing time measurements of charged particles with a resolution better than 50 ps. The barrel section of the MTD, the Barrel Timing Layer (BTL), covering a pseudorapidity region of η < 1.5, consists of approximately 166,000 scintillating LYSO:Ce crystals coupled to silicon photomultipliers (SiPMs) and readout with a custom TOFHIR ASIC. The Endcap Timing Layer (ETL), covering the pseudorapidity region 1.6 < η < 3, will utilize low-gain avalanche diodes (LGADs), a novel silicon-based technology, read out by a custom-designed ASIC called ETROC. This presentation will provide an overview of the MTD design, focusing on module and sensor performance, and will present the overall project status and recent achievements.