On the decrease in charge radii of multi-quasi particle isomers
On the decrease in charge radii of multi-quasi particle isomers
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DOI：
10.1016/j.physletb.2006.12.054
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发表时间：
2007-02
影响因子：
4.4
通讯作者：
M. Bissell;K. Flanagan;M. Gardner;M. Avgoulea;J. Billowes;P. Campbell;B. Cheal;T. Eronen;D. H. Forest;J. Huikari;A. Jokinen;I. Moore;A. Nieminen;H. Penttilä;S. Rinta-Antila;B. Tordoff;G. Tungate;J. Äystö
中科院分区：
文献类型：
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作者：
M. Bissell;K. Flanagan;M. Gardner;M. Avgoulea;J. Billowes;P. Campbell;B. Cheal;T. Eronen;D. H. Forest;J. Huikari;A. Jokinen;I. Moore;A. Nieminen;H. Penttilä;S. Rinta-Antila;B. Tordoff;G. Tungate;J. Äystö
我们报告了三种多准粒子异构体：97m2Y、176mYb 和 178m1Hf 的均方电荷半径、δ<r2>、磁矩和四极矩的变化。与构建该异构体的较低核态相比，观察到所有异构体的 <r2> 均有所减少。尽管异构体的四极矩增加，<r2> 仍发生减少。讨论了目前在六种多准粒子异构体中看到的这种效应的可能机制。
We report changes in mean-square charge radii, δ〈r2〉, magnetic moments and quadrupole moments for three multi-quasi particle isomers;97m2Y,176mYb and178m1Hf. All the isomers are observed to display a decrease in 〈r2〉 compared to the lower-lying nuclear state on which the isomer is built. The decreases in 〈r2〉 occur despite the isomers showing increases in quadrupole moment. Possible mechanisms for the effect, which is now seen for six multi-quasi particle isomers, are discussed.