Abstract
Two Cherenkov counters, Č 0 and Č 1, are being used in an experiment to search for dibaryon candidates in the reaction K −d → K + + X at 1.4 GeV/ c. They have useful cross-sections of 10 × 8 cm 2 and 30 × 15 cm 2, respectively. Each counter is a diffusing box surrounding the aerogel sample and can be examined by two photomultipliers. The mean number of photoelectrons collected is equal to 17 in Č 0 and 21 in Č 1 for β = 1 incident particles. Below threshold, the residual scintillation corresponds to 0.12 photoelectrons. The role of each otheter in the trigger logic for the K −d → K + + X experiment is carefully studied.
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