Abstract

Spectra of protons and deuterons emitted in hadron-nucleus reactions at 4 GeV/ c were studied with the coalescence model to deduce information on the spatial extent of the emission source. The source sizes correlated strongly to nucleon multiplicities, and indirectly to the target mass and the associated pion multiplicity. Theanalysis indicated the formation of a slow moving source previously assumed in the two-moving-source parametrization.

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