Abstract

The analysis of the deuteron production in p-Be interactions at 450 GeV/c taken by the NA56/SPY experiment at CERN SPS is presented. In the framework of the coalescence model, the coalescence factor k is determined as (0.79±0.05±0.13) × 10-2. Our results disfavour the hypothesis that coalescence be the dominant mechanism for deuteron production in p + Be interactions at low pT.

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