16O + 16O molecular structures of positive- and negative-parity superdeformed bands in 34S
16O + 16O molecular structures of positive- and negative-parity superdeformed bands in 34S
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34S中正、负宇称超变形能带的 16O 16O 分子结构
DOI：
10.1103/physrevc.90.054308
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发表时间：
2014
影响因子：
3.1
通讯作者：
Y. Taniguchi
中科院分区：
文献类型：
--
作者：
S. Hatakeyama;S. Ebata;W. Horiuchi;M. Kimura;Y. Taniguchi;Y. Taniguchi
用反对称化分子动力学和生成元坐标方法(GCM)研究了激发态的结构。在约束四极形变参数的条件下，通过能量变分计算了GCM基波函数。通过在宇称和角动量投影后应用GCM，预测了两个正宇称和一个负宇称超形变(SD)带的共存，得到了低激发态和其他形变带。在团簇图像中，SD带在两个核心周围的分子轨道上具有+两个价中子的结构。对于正宇称SD带和负宇称SD带，给出了两个价中子的组态.还讨论了Yrast态的结构变化。
The structures of excited states inare investigated using the antisymmetrized molecular dynamics and generator coordinate method (GCM). The GCM basis wave functions are calculated via energy variation with a constraint on the quadrupole deformation parameter. By applying the GCM after parity and angular momentum projections, the coexistence of two positive- and one negative-parity superdeformed (SD) bands are predicted, and low-lying states and other deformed bands are obtained. The SD bands have structures of+ two valence neutrons in molecular orbitals around the twocores in a cluster picture. The configurations of the two valence neutrons areandfor the positive-parity SD bands andfor the negative-parity SD band. The structural changes of the yrast states are also discussed.