Influence of the Pauli exclusion principle on α decay

被引:8
|
作者
Amiri, M. Moghaddari [1 ]
Ghodsi, O. N. [1 ]
机构
[1] Univ Mazandaran, Fac Sci, Dept Phys, POB 47415-416, Babolsar, Iran
关键词
FOLDING-MODEL ANALYSIS; SHELL; SYSTEMATICS; WIDTH;
D O I
10.1103/PhysRevC.102.054602
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
In this study, the effects of repulsive nucleon-nucleon interactions arising from the Pauli exclusion principle were examined regarding the half-lives of heavy even-even nuclei with 84 <= Z <= 92. The Pauli exclusion principle is applied to our investigations by renormalizing the nucleon-nucleon interactions according to the Bohr-Sommerfeld quantization condition. It is also applied to the double-folding (DF) formalism as a modification term by investigating the kinetic energy variation at the overlapping regions between the densities of the alpha and daughter nuclei. The standard deviation for the calculated half-lives from their corresponded experimental data is 0.340 for the renormalized DF formalism. Its value reduces to 0.309 for the DF formalism modified with the kinetic-energy contribution estimated by the extended Thomas-Fermi approach. The calculated alpha-decay half-lives are more consistent with experimental data if the kinetic-energy contribution is associated with the DF formalism.
引用
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页数:9
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