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8–12 Oct 2019
华中师范大学
Asia/Shanghai timezone

实验研究奇奇核$^{74}$As的对称性自发破缺

10 Oct 2019, 09:50
20m
科学会堂201 (华中师范大学)

科学会堂201

华中师范大学

武汉
核结构 S1: 核结构

Speaker

Mr Xiao Xiao (Shandong University)

Description

基于南非iThemba国家实验室的AFORDITE探测阵列,通过重离子熔合蒸发反应$^{74}$Ge(α, 1p3n)研究了$^{74}$As的高自旋态能级结构。本工作拓展了已知的能级纲图\[1\],增加了34条新跃迁和13条能级,在正负宇称各建立了一对近简并的转动带,图1是本工作搭建的能级纲图。通过分析两对近简并带的能谱、S(I)和B(M1)/B(E2)(见图1),把正宇称的两条带指定为手征双重带,把负宇称的两条带指定为赝自旋伙伴带。 ![enter image description here][1] 图1. 本工作搭建的$^{74}$As的能级纲图,图中标红色的是新发现的能级和跃迁。 ![enter image description here][2] 图2. 两对近简并转动带的能谱、S(I)和E(I)的实验值。 [1]: https://s2.ax1x.com/2019/08/20/mYM9AJ.png [2]: https://s2.ax1x.com/2019/08/20/mYM3gP.png 参考文献: \[1\] S. P. Hu et al., Physics Letters B 732, 59 (2014).
Abstract Type Talk

Primary authors

Prof. Shouyu Wang (Shandong University) Mr Xiao Xiao (Shandong University)

Presentation materials