Small suppression of the complete fusion of 6Li + 28Si reaction at near barrier energies

Abstract

The incomplete fusion cross section of the 6Li + 28Si weakly bound system at above barrier energies was deduced from the measured $ \gamma$ -ray cross sections. The complete fusion cross section was estimated from the measured total fusion and incomplete fusion cross section and is found to be 85-100% of the total fusion cross section. The coupled channel calculation has been performed considering ground and first excited states of 28Si target. The fusion cross section estimated from coupled channel calculation shows good agreement with measured total fusion cross section at higher energies. The suppression of about 15% of the fusion cross section predicted by coupled channel calculation shows good agreement with the complete fusion cross section. The effect of the channel couplings on the elastic scattering angular distribution is also investigated.