Analysis of dynamical process with mass distribution of fission fragmentin heavy ion reactions

Y. Aritomo

doi:10.1051/epjconf/20100207004

EPJ

Analysis of dynamical process with mass distribution of fission fragmentin heavy ion reactions

Y. Aritomo¹^,2

¹ Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Moscow Region 141980, Russia
² Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan

Abstract

We analyzed experimental data obtained for the mass distribution of fission fragments in the reactions ³⁶S+²³⁸U and ³⁰Si+²³⁸U at several incident energies, which were performed by the JAEA group. Using the dynamical model with the Langevin equation, we precisely investigate the incident energy dependence of the mass distribution of fission fragments. We also consider the fine structures in the mass distribution of fission fragments caused by the nuclear structure at a low incident energy. It is explained why the mass distribution of fission fragments has different features in the two reactions. The fusion cross sections are also estimated.