Examinations of isospin effects in multi-dimensional Langevin fission dynamics
P. N. Nadtochy (Omsk State University, Russia)
GANIL-Room 105, 11h
Coffee will be served 15 mn before
Multi-dimensional dynamical fission calculations based on Langevin equations are performed for the compound nuclei in the mass region 132<A<206 and excitation energies 100 < Ex < 200 MeV to investigate the influence of the compound nucleus isospin on the prescission particle multiplicities and on the fission fragment mass-energy distribution.
It is found that the prescission neutron, proton, and alpha particle multiplicities have approximately the same sensitivity to the dissipation strength for a given nucleus. This is at variance with conclusions of recent papers. A systematic comparison of theoretical predictions with wide set of observables in both fission and evaporation residue channels is presented and allows to conclude about dominating of one-body nuclear dissipation mechanism.
