Speaker
Description
The CMS Mip Timing Detector (MTD) is a vital part of the CMS upgrade for the High Luminosity Large Hadron Collider (HL-LHC), which will start operations in 2030. The HL-LHC will achieve $3000\;\textrm{fb}^{-1}$ of integrated luminosity over 10 years, pushing the boundaries of precision measurements and rare process searches. To manage the significant increase in pile-up interactions, the MTD incorporates the Barrel Timing Layer (BTL), composed of 166,000 LYSO crystals and 332,000 custom Silicon Photomultipliers (SiPMs), offering a time resolution of 30-60 picoseconds to improve event reconstruction.
Recent large-scale system tests have demonstrated the full functionality of the end-to-end acquisition chain with up to 4600 detector channels, using production versions of both front-end and back-end electronics. The prototyping phase has also validated the detector's timing resolution, expected to be 30 ps at the start of operations, with strategies in place to mitigate radiation damage. Full assembly is projected to complete by mid-2025.
| Primary experiment | CMS collaboration |
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