Anomalies in the α-Decay Energies and Half-Lives of Neutron-Deficient Po Isotopes

被引：0
|
作者：
M. Huyse
A. Andreyev
K. Van de Vel
P. Van Duppen
R. Wyss
机构：
[1] University of Leuven,Instituut voor Kern
[2] Royal Institute of Technology, en Stralingsfysica
来源：
Hyperfine Interactions | 2001年 / 132卷
关键词：
α decay; shape coexistence;
D O I：
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中图分类号：
学科分类号：
摘要：
The transition rates of ΔL=0 - transitions in the lightest Po isotopes are considerably slower than the transition rates of the heavier ones, even leading to a considerable deviation in the classical Geiger-Nuttall plot. Evidence will be given that due to particle-hole excitations through the Z=82 proton shell, the groundstate of the lighter Po isotopes becomes deformed and direct - decay to the spherical groundstate of the corresponding Pb isotopes is highly retarded.
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页码：141 / 146
页数：5
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