The measured fusion barrier distributions for 40Ca + 192Os, 194Pt show significant features due to projectile excitation, while none are seen for 16O + 144Sm. This conflict is reconciled using realistic coupled-channel calculations, which show that the higher excitation energy of the 3− state in 16O produces an adiabatic potential renormalization, without affecting the structure in the barrier distribution. This result indicates that adiabatic effects restrict, in a natural way, the states which influence the shape of a fusion barrier distribution.
ASJC Scopus subject areas
- Physics and Astronomy(all)