Abstract
Production of deuterons in 24 GeV/c proton and 50 GeV/c pion interactions with emulsion nuclei has been investigated. Some characteristics of stars in which deuterons have been observed have been compared with the average characteristics of stars. It has been found that (i) for any given value of ng the average excitation of deuteron producing stars is higher than the total sample and (ii) the average shower multiplicity in stars with less energetic deuterons is higher than of the events with energetic deuterons or of the ordinary sample. None of the existing models for deuteron production seems to be capable of explaining the observed features.
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