Speaker
Description
The Silicon Tracker of the Compact Muon Solenoid (CMS) is the innermost sub-detector of the experiment and is responsible for measuring charged particles produced in high-energy collisions at the Large Hadron Collider (LHC). It consists of an inner pixel detector with 1,856 modules and an outer strip detector comprising 15,148 modules, together forming the world’s largest silicon tracking system.
The LHC has been operating for over a decade in multi-year data-taking periods, known as runs, interspersed with extended maintenance and upgrade phases called Long Shutdowns. Since the start of Run-3 in 2022, planned to conclude on 29 June this year, the LHC has delivered exceptional instantaneous and integrated luminosity, surpassing both accelerator and detector design expectations. While this performance enables the collection of high-quality physics data, it also presents significant challenges for detector operation.
Due to its proximity to the interaction point, the CMS Silicon Tracker is particularly affected by the harsh radiation environment. This presentation provides an up-to-date assessment of the detector’s low-level performance, the impact of radiation damage, and the mitigation strategies implemented to ensure reliable operation throughout CMS Run-3 data taking.
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