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The Future of RICH Detectors through the Light of the LHCb RICH

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arxiv 1703.09927 v2 pith:RVEIORLD submitted 2017-03-29 physics.ins-det hep-ex

classification physics.ins-dethep-ex
keywords richdetectorshighlhcbperformanceappliedexperimentfuture
verification ladder T0 review T1 audit T2 compute T3 formal
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The limitations in performance of the present RICH system in the LHCb experiment are given by the natural chromatic dispersion of the gaseous Cherenkov radiator, the aberrations of the optical system and the pixel size of the photon detectors. Moreover, the overall PID performance can be affected by high detector occupancy as the pattern recognition becomes more difficult with high particle multiplicities. This paper shows a way to improve performance by systematically addressing each of the previously mentioned limitations. These ideas are applied in the present and future upgrade phases of the LHCb experiment. Although applied to specific circumstances, they are used as a paradigm on what is achievable in the development and realisation of high precision RICH detectors.

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