Abstract
Mass, velocity, and angular distributions have been measured for heavy products and for light charged particles from the reaction 215 MeV Al. Coincidences between evaporation residues and light charged particles have also been measured. Statistical-model calculations, incorporating light-particle decay from either the compound nucleus or the composite nucleus formed in the direct emission of a beam velocity particle, cannot account for the observed cross sections or angular distributions of the heavy residues. More elaborate kinematic simulations, which include direct light-particle emission as observed in the light-particle inclusive data, also do not work. This supports the notion that heavy fragment production (A>4) would be needed to account for the residue distributions.
- Received 15 January 1992
DOI:https://doi.org/10.1103/PhysRevC.46.265
©1992 American Physical Society