Studying the Decay of $^{46}$Ti*: Does Different Partner Structure Influence the Competing Mechanisms and the Following Compound Nucleus Decay?
Résumé
A useful tool to underline possible structure effects on the competition between different reaction mechanisms, which may change the expected decay chain probability, is the exclusive study of light charged particles emission from hot light composite systems. In particular, the influence of projectile structure may be evidenced by studying the competition between fast and thermal emissions. In this framework, the four reactions ^16O+^30Si, ^18O+^28Si, ^19F+^27Al at 7 MeV/u and ^16O+^30Si at 8 MeV/u have been carried out using the GARFIELD+RCo array at Legnaro National Laboratories. Some anomalies in the α-particle emission channels have been evidenced in the measurements reported above, showing in an exclusive way the observed effects related to the entrance channels. The experimental results are compared to statistical model predictions, for which the same filtering and complete event selection have been applied.