Testbeam results on particle identification with aerogel used as RICH radiator

Author

Alemi, M. ; Bellunato, T. ; Braem, A. ; Calvi, M. ; Chesi, E. ; Joram, C. ; Liko, D. ; Matteuzzi, C. ; Negri, P. ; Neufeld, N. ; Paganoni, M. ; Seguinot, J. ; Voillat, D. ; Weilhammer, P. ; Ypsilantis, T.

Author_Institution

Dipartimento di Fisica, Milan Univ., Italy

Volume

2

fYear

2000

fDate

2000

Firstpage

42696

Abstract

We present the results obtained by exposing samples of silica aerogel of different thickness and optical properties to pion and proton beams with momenta between 6 and 10 GeV/c in the PS testbeam facility at CERN. Two large diameter pad-HPDs with 2048 channels, produced at CERN, have been used as photon detectors. Separate Cherenkov rings produced by the different particles were reconstructed obtaining pion/proton separation on the whole considered momentum range. The number of photoelectrons was measured as a function of aerogel thickness and was found in agreement with Monte Carlo expectations

Keywords

Cherenkov counters; Monte Carlo methods; aerogels; meson detection; proton detection; silicon compounds; Monte Carlo expectations; RICH radiator; SiO₂; aerogel thickness; optical properties; particle identification; photon detectors; pion/proton separation; silica aerogel; Detectors; Educational institutions; Mesons; Optical refraction; Optical variables control; Particle beams; Silicon compounds; Tagging; Testing; Thickness measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2000 IEEE

Conference_Location

Lyon

ISSN

1082-3654

Print_ISBN

0-7803-6503-8

Type

conf

DOI

10.1109/NSSMIC.2000.949925

Filename

949925