Light-particle correlations with evaporation residues in the 40Ca+12C reaction at E(40Ca)=450 MeV.

Proton and [alpha]-particle correlations with evaporation residues were measured over the complete angular range in the interaction of 450--MeV [sup 40]Ca beam with a [sup 12]C target. Comparisons of the data with predictions of the statistical model and expectations for complete fusion from the kinematics provide clear and consistent evidence of incomplete fusion due to preequilibrium emission of both protons and [alpha] particles from the [sup 12]C target. However, there is conflicting evidence both for and against preequilibrium emission from the projectile.