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Particle transfer and fusion cross-section for Super-heavy nuclei in dinuclear system

Wenfei Li·Nan Wang·Fei Jia·Hushan Xu·Wei Zuo·Qingfeng Li·Enguang Zhao·Junqing Li·W. Scheid
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Abstract

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.

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Wenfei Li, Nan Wang, Fei Jia, Hushan Xu, Wei Zuo, Qingfeng Li, Enguang Zhao, Junqing Li, W. Scheid. 2005-09-22. Particle transfer and fusion cross-section for Super-heavy nuclei in dinuclear system. https://doi.org/10.1088/0954-3899%2F32%2F8%2F006

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