3 research outputs found
The Isospin Distribution of Fragments in Reactions 96Ru+96Ru, 96Ru+96Zr, 96Zr+96Ru, and 96Zr+96Zr at Beam Energy 400 AMeV
The isospin distribution of particles and fragments in collisions 96Ru+96Ru,
96Ru+96Zr, 96Zr+96Ru, and 96Zr+96Zr at beam energy 400 AMeV is studied with
isospin dependent QMD model. We find that the rapidity distribution of
differential neutron-proton counting in neutron rich nucleus-nucleus collisions
at intermediate energies is sensitive to the isospin dependent part of nuclear
potential. The study of the N/Z ratio of nucleons, light charged particles
(LCP) and intermediate mass fragments (IMF) shows that the isospin dependent
part of nuclear potential drives IMF to be more isospin symmetric and emitted
nucleons to be more neutron rich. From the study of the time evolution of the
isospin distribution in emitted nucleons, LCP and IMF we find that neutrons
diffuse much faster than protons at beginning and the final isospin
distribution is a result of dynamical balance of symmetry potential and Coulomb
force under the charge conservation.Comment: 10 pages, 5 figure