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Compares optical designs for particle identification in LHCb detectors, demonstrating enhancements for Upgrade II.
The LHCb Upgrade II program, planned for the High-Luminosity LHC era, requires a redesigned optical system to enable the RICH detectors to operate under significantly harsher conditions while preserving excellent particle-identification performance. In this contribution, we present several candidate optical layouts for Upgrade II and compare their performance to the current Run 3 design using metrics tailored to RICH detectors. The layouts are optimized using an optical framework and validated through a full simulation under realistic detector conditions. Finally, we compare the Run 3 and Upgrade II optics, demonstrating that the new designs satisfy the performance requirements imposed by the Upgrade II programme.
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Cardinale et al. (2026) studied this question.
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