ИСТИНА

The calculations of fusion barriers are carried out within the double-folding approach assuming the diabatic regime of collisions of heavy ions with Z, N > 9. Radial parameters of nucleon densities given in the Fermi-distribution form are approximated on the basis of rms charge radii. According to experimental data, diffuseness parameters of nucleon distributions are not clearly correlated with Z, N, A of corresponding nucleus and have significant uncertainties. Therefore, the diffuseness values were fitted to reproduce the Bass barriers for spherical nuclei. Potential barriers obtained in such a way can be used as estimation of fusion barriers in heavy ion reactions.