Resonances in 28Si + 28Si. II —Analyses for the Angular Distributions and Angular Correlations—

E. Uegaki, Y. Abe
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引用次数: 7

Abstract

Resonances observed in the 28Si+28Si collision are studied by the molecular model. In the preceding paper, it is clarified that at high spins in 28Si+28Si (oblate-oblate system), the stable dinuclear configuration of the system is equator-equator touching one, and that the axially asymmetric shape of the stable configuration of 28Si+28Si gives rise to a wobbling motion ($K$-mixing). There, the normal modes around the equilibrium have been solved and various excited states have been obtained. Those states are expected to be the origin of a large number of resonances observed. Hence their physical quantities are analyzed theoretically. The results are compared with the recent experiment performed in Strasbourg and turn out to be in good agreement with the data. Disalignments between the orbital angular momentum and the spins of the constituent 28Si nuclei in the resonance state are clarified. Moreover the analyses of the angular correlations indicate characteristic features for each normal-mode excitation. Thus it is possible to identify the modes, and a systematic experimental study of angular correlation measurements is desired.
28Si + 28Si的共振。角分布和角相关性的分析
用分子模型研究了28Si+28Si碰撞中的共振现象。在上一篇文章中,澄清了28Si+28Si(扁圆-扁圆体系)在高自旋时,系统的稳定双核构型是赤道-赤道接触构型,并且28Si+28Si稳定构型的轴对称形状引起了摆动运动($K$混合)。在那里,解出了平衡周围的正态,得到了各种激发态。这些状态被认为是观测到的大量共振的起源。从理论上分析了它们的物理量。结果与最近在斯特拉斯堡进行的实验进行了比较,结果与数据吻合得很好。澄清了28Si核在共振态的轨道角动量与自旋之间的失调。此外,角相关分析表明了每个正态激励的特征。因此,有可能识别模态,并需要对角相关测量进行系统的实验研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Progress of Theoretical Physics
Progress of Theoretical Physics 物理-物理:综合
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