The RICH detector of the SELEX experiment

Author:

Engelfried, J  Filimonov, I  Kilmer, J  Kozhevnikov, A  Kubarovsky, V  Molchanov, V  Nemitkin, A  Ramberg, E  Rud, V  Stutte, L  

Journal:

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Issue Date:

1999

Abstract(summary):

A RICH detector was used during the 1996/7 fixed target run at Fermilab in experiment E781 - SELEX. The detector utilizes a matrix of 2848 phototubes for the photocathode. The figure of merit, N-o, has been measured to be in excess of 100 cm(-1). The ring radius resolution for multitrack events has been measured to be 1.8 mm, which gives K/pi. separation on a 2 sigma level up to a momentum of 165 GeV/c, and p/pi separation up to 320 GeV/c. We will describe the design of the detector, discuss the stability during operation, and report on achieved results (C) 1999 Elsevier Science B.V. All rights reserved.

Page:

149---152