A modified-Wong formula for heavy-ion fusion reactions

By assuming one parameter of the Wong formula, the curvature of the potential barrier, as an energy-dependent one, namely ħω→ħωexp [ λE - V/V ] , a modified-Wong formula has been developed. Here, λ is an additional adjustable parameter and ħω becomes the curvature at the top of the barrier, E = V . This modified-Wong formula, with four parameters, reproduces fusion excitation functions very well for many light to heavy systems across the whole energy range, including fusion hindrance phenomenon.