Dynamical cluster-decay model for fusion cross-sections below the barrier

Fusion-evaporation cross-sections σevr, in reactions known for fusion hindrance phenomenon in coupled-channels calculations at below barrier energies, are studied in terms of the dynamical cluster-decay model (DCM) and the Wong formula, both based on proximity potential, by using the concept of “barrier modification” at sub-barrier energies, first advocated by Misicu and Esbensen for M3Y potential. The DCM is shown to contain the “barrier lowering” property as its inbuilt characteristic, and the same is shown possible empirically in (ℓ-summed) Wong formula.