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arXiv 0706.0145nucl-th
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氧同位素中的团簇结构

Cluster structures in Oxygen isotopes

N. Furutachi, M. kimura, A. Doté, Y. Kanada-En'yo, S. oryu

摘要:

用反对称分子动力学(AMD)加生成坐标方法(GCM)研究了16 O、18 O和20 O的团簇结构.我们发现了18 O的K^π=0 $_2^+$和0 $_1^-$转动带,它们具有突出的14 C +α团簇结构。2000年聚类系统学更加丰富。我们认为K^π=0 $_2^+$带是12 C +α+4n和14 C +6He团簇结构的混合带,K^π=0 $_1^-$带是14 C +6He团簇结构的混合带。还发现了具有明显的16 C +α团簇结构的K^π=0 $_3^+$和0 $_2^-$带。

英文摘要:

Cluster structure of 16O,18O and 20O is investigated by the antisymmettrized molecular dynamics (AMD) plus generator coordinate method (GCM). We have found the K^π=0$_2^+$ and 0$_1^-$ rotational bands of 18O that have the prominent 14C+αcluster structure. Clustering systematics becomes richer in 20O. We suggest the K^π=0$_2^+$ band that is the mixture of the 12C+α+4n and 14C+6He cluster structures, and the K^π=0$_1^-$ band that has the 14C+6He cluster structure. The K^π=0$_3^+$ and 0$_2^-$ bands that have the prominent 16C+αcluster structure are also found.

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