CERN Accelerating science

LHCb Note
Report number	arXiv:1703.09927 ; LHCB-PUB-2017-014 ; CERN-LHCb-PUB-2017-014 ; LHCB-PUB-2017-014 ; CERN-LHCb-PUB-2017-014
Title	The Future of RICH Detectors through the Light of the LHCb RICH
Related title	The Future of RICH Detectors through the Light of the LHCb RICH
Author(s)	D'Ambrosio, C. (CERN) ; Cardinale, R. ; Easo, S. ; Petrolini, A. ; Ullaland, O.
Collaboration	LHCb RICH ; LHCb RICH Collaboration
Note	RICH 2016 Conference
To be published in:	Nucl. Instrum. Methods Phys. Res., A 876 (2017) 194-197
Submitted to	9th International Workshop on Ring Imaging Cherenkov Detectors, Bled, Slovenia, 5 - 9 Sep 2016, pp.194-197
DOI	10.1016/j.nima.2017.02.076
Submitted by	amelie.caillet@cern.ch on 28 Mar 2017
Subject category	Particle Physics - Experiment ; Detectors and Experimental Techniques ; physics.ins-det ; hep-ex
Note type	PHYS
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Abstract	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.
Copyright/License	Preprint: (License: CC-BY-4.0) © 2017 Published by Elsevier B.V.

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