近年来,牛顿等发现从垒上能区高精度熔合激发函数抽取的表面弥散参数比普遍接受的0.63fm大得多。造成这种差别的原因尚不清楚。近来,大角度背角准弹散射被用来研究核势的表面弥散参数。另外,人们还利用近垒能区准弹莫特散射角分布的峰位间距来研究对称反应体系核势的表面弥散参数。 In recent years, Newton et al. Found that the surface diffusion parameter extracted from the high-energy fusion excitation function of the basal region is much larger than the commonly accepted 0.63fm. The reason for this difference is not clear. Recently, the large-angle back-arc projectile scattering has been used to study the surface dispersion parameters of nuclear potential. In addition, the surface diffusion parameters of the nuclear potential of the symmetric reaction system are also studied by using the peak-to-peak spacing of the quasi-bomb Mott scattering angle distribution near the barrier.