论文标题

重型$ n = z $ nucleus $^{88} $ ru:$α$ -cluster方法

Yrast band in the heavy $N = Z$ nucleus $^{88}$Ru: $α$-cluster approach

论文作者

Mohr, Peter

论文摘要

重型$ n = z $ nucleus $^{88} $ ru中的yrast频段在$α$ cluster型号的框架中研究了,并结合了双重折叠电位。发现在$^{88} $ ru中,yrast频段的激发能可以在$α$ cluster方法中很好地描述,并使用平滑而轻度的$ l $依赖性调整潜在强度的调整。该结果类似于具有良好的$α$ cluster状态,该状态具有(Magic Core $ \ otimes $ $ $α$)结构。相反,相邻的$ n \ ne z $ nuclei中的yrast频段偏离了这种典型的$α$ cluster行为。最后,$α$ cluster模型预测,在$^{88} $ ru的yrast频段中,在低洼状态之间的映射过渡降低了约10个Weisskopf单元。

The yrast band in the heavy $N = Z$ nucleus $^{88}$Ru is studied in the framework of the $α$-cluster model in combination with double-folding potentials. It is found that the excitation energies of the yrast band in $^{88}$Ru can be nicely described within the $α$-cluster approach using a smooth and mildly $L$-dependent adjustment of the potential strength. This result is similar to well-established $α$-cluster states in nuclei with a (magic core $\otimes$ $α$) structure. Contrary, the yrast bands in neighboring $N \ne Z$ nuclei deviate from such a typical $α$-cluster behavior. Finally, the $α$-cluster model predicts reduced transition strengths of about 10 Weisskopf units for intraband transitions between low-lying states in the yrast band of $^{88}$Ru.

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