Heavy-ion fusion cross-section calculations in classical microscopic equations of motion approach

Fusion cross-sections for 16O+16O reaction earlier calculated in classical microscopic equations of motion approach, with Lennard-Jones form of NN interaction potential are overestimated compared to the experimental data at lower energies. This large deviation was attributed to possible breakdown of classical approximations at lower energies. The aim of this paper is to show that this discrepancy was rather due to certain assumptions made in the specification of initial conditions, in particular due to neglect of Coulomb interaction between the colliding ions at far off distances. Use of Lennard-Jones potential is also critically examined. 25 refs. (author)