Mean-field dependence of fragment-production cross sections in heavy-ion induced reactions calculated by antisymmetrized molecular dynamics

Dependence of the fragment production cross-sections in heavy-ion induced reactions on employed mean-field models was investigated based on antisymmetrized molecular dynamics. For this purpose, five different sets of Skyrme mean-field potentials were employed. We found that there are differences of up to 20 times in production of fragments to forward angles in the systems of C-12 + O-16 at 6 and 100 MeV/u and C-12 + Al-27 at 6 MeV/u, where reactions with C-12 projectile were selected due to its frequent use in cancer therapy. However, such a large difference tends to cease at backward angles. Therefore, a conclusion was drawn that the difference was due to the properties of the incident C-12 nucleus. In order to verify this theoretical result, additional calculations were conducted for the C-12(p, n) and Al-27(p, n) reactions at 256 MeV, wherein a difference in the neutron yields was observed only in the former reaction.