arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1910.04523nucl-th
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$^{125,127,129,131}$ Cs中三准粒子组态正宇称二重带的系统研究

Systematic investigations of positive-parity doublet bands with three-quasiparticle configurations in $^{125,127,129,131}$Cs

Rui Guo, Wu-Ji Sun, Jian Li, Dong Yang, Yonghao Liu, Chengkun Ru, Jihuai Chi

摘要:

本文系统地研究了奇- \emph{A}铯同位素$^{125,127,129,131}$ Cs的正宇称二重带的实验特征,包括角动量排列、能量交错、$B(M1)/B(E2)$等,并与相邻的奇-奇铯同位素的候选手征带进行了比较。这些带的配置分配和动力学进行了讨论。自洽的倾斜轴曲柄相对论平均场计算进行配置重新分配给这些带。四个核的实验能级方案得到了很好的再现,计算结果也表明四个核具有明显的三轴形变,支持了$^{125,127,129,131}$ Cs中的手征双重带.

英文摘要:

The experimental features of positive-parity doublet bands in the odd-\emph{A} cesium isotopes $^{125,127,129,131}$Cs, including angular momentum alignment, energy staggering, $B(M1)/B(E2)$ etc. are studied systematically and compared to those of the candidate chiral bands in the adjacent odd-odd Cs isotopes. The configuration assignments and the dynamics of these bands are discussed. The self-consistent tilted axis cranking relativistic mean-field calculations are performed with configuration reassigned to these bands. The experimental level schemes of four nuclei are well reproduced, and the calculations also show four nuclei have obvious triaxial deformations and thus support the candidate chiral doublet bands in $^{125,127,129,131}$Cs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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