α-clustering and triaxial deformations in 40Ca

被引：0
|
作者：
Taniguchi, Yasutaka [1 ]
Kimura, Masaaki [1 ]
Kanada-En'yo, Yoshiko [1 ]
Horiuchi, Hisashi [1 ]
机构：
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
来源：
PROTON EMITTING NUCLEI AND RELATED TOPICS | 2007年 / 961卷
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中图分类号：
O59 [应用物理学];
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摘要：
We have Studied the positive-parity states of Ca-40 using antisymmetrized molecular dynamics (AMD) and the generator coordinate method (GCM). Imposing two different kinds of constraints on the variational calculation, we have found various kinds of Ca-40 structures such as a deformed-shell structure, as well as alpha-Ar-36 and C-12-Si-28 cluster structures. After the GCM calculation, we obtained a normal-deformed band and a superdeformed band to-ether with their side bands associated with triaxial deformation. The calculated B(E2) values agreed well with empirical data. It was also found that the normal-deformed and superdeformed bands contain alpha-Ar-16 and C-12- Si-28 cluster structure components. respectively. This leads to the presence of an alpha-Ar-36 higher-nodal band occurring above the normal-deformed band.
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页码：261 / +
页数：2
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