Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2005-09-21
J.Phys.G32:1143-1156,2006
Physics
Nuclear Physics
Nuclear Theory
19 pages, plus 6 figures, submitted to Phys. Rev. C
Scientific paper
10.1088/0954-3899/32/8/006
Within the dinuclear system (DNS) conception, instead of solving Fokker-Planck Equation (FPE) analytically, the Master equation is solved numerically to calculate the fusion probability of super-heavy nuclei, so that the harmonic oscillator approximation to the potential energy of the DNS is avoided. The relative motion concerning the energy, the angular momentum, and the fragment deformation relaxations is explicitly treated to couple with the diffusion process, so that the nucleon transition probabilities, which are derived microscopically, are time-dependent. Comparing with the analytical solution of FPE, our results preserve more dynamical effects. The calculated evaporation residue cross sections for one-neutron emission channel of Pb-based reactions are basically in agreement with the known experimental data within one order of magnitude.
Jia Fei
Li Junqing
Li Qingfeng
Li Wenfei
Scheid Werner
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