Alpha-decay quantum-tunnelling calculations based on a folded Woods-Saxon potential

10th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Xu, F.R.^1 ; Wang, S.M.^1 ; Lin, Z.J.^1 ; Pei, J.C.^1

State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China^1

关键词: Cluster motion;    Folding factor;    Point particle;    Quantization condition;    Quantum tunnelling;    Single particle;    Standard values;    Superheavy nuclei;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/436/1/012064/pdf
DOI  :  10.1088/1742-6596/436/1/012064

来源: IOP

【 摘 要 】

Assuming that the α particle is a structureless point particle with two protons and two neutrons, we construct a mean-field-type cluster potential based on the Woods-Saxon potential with a folding factor which is to satisfy the quantization condition of a quasibound cluster state. The folded Woods-Saxon cluster potential has been successfully applied to the calculations of α-particle decay in light and superheavy nuclei. The standard values of the Woods-Saxon parameters were used without any adjustment. The calculated α-decay widths or lifetimes agree generally with experiment. Such a cluster potential leads to a consistent description of single-particle and cluster motions.