FARICH optimization for precise velocity measurement

Lately aerogel samples of refractive index as high as 1.13 were synthesized in Novosibirsk. Light scattering length for some samples approaches 12 cm. We performed a Geant4 simulation for a FARICH with aerogel of 1.10 index of refraction. Two photodetector options were considered: Burle MCP PMT and...

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Bibliographic Details
Published in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 598; no. 1; pp. 169 - 172
Main Authors:	Barnyakov, A.Yu, Barnyakov, M.Yu, Bobrovnikov, V.S., Buzykaev, A.R., Danilyuk, A.F., Kirillov, V.L., Kononov, S.A., Kavchenko, E.A., Onuchin, A.P., Todyshev, K.Yu
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 2009
Subjects:	Aerogel Particle identification Proximity focusing Ring imaging Cherenkov counter Proximity focusing Ring imaging Cherenkov counter Particle identification Aerogel
Online Access:	Get full text
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Summary:	Lately aerogel samples of refractive index as high as 1.13 were synthesized in Novosibirsk. Light scattering length for some samples approaches 12 cm. We performed a Geant4 simulation for a FARICH with aerogel of 1.10 index of refraction. Two photodetector options were considered: Burle MCP PMT and a novel photodetector—Hamamatsu MPPC. It is shown that FARICH with MPPC photodetector is able to separate at 3 σ level pions and kaons up to 8 GeV/ c, muons and pions up to 1.5 GeV/ c momentum. The project of Forward RICH for SuperB factory based on focusing aerogel radiator is presented. It is demonstrated that using a FARICH detector for the momentum measurement the momentum precision can be significantly improved.
ISSN:	0168-9002 1872-9576
DOI:	10.1016/j.nima.2008.08.090