^{79}Zn^{m}附近的双重魔术 ^{78}Ni 形状共存的进一步证据
L Nies1,2, L Canete3,4, D D Dao5
1European Organization for Nuclear Research (CERN), Meyrin, 1211 Geneva, Switzerland.
Physical review letters
|December 15, 2023
概括
研究人员测量了-79中异构体的激发能量,揭示了对核外演化和形状共存的洞察力,接近双重魔力-78. 这一发现支持在核图的这个关键区域存在形状共存.
科学领域:
- 核物理 核物理 核物理
- 原子物理 原子物理
背景情况:
- 接近双魔核的核异构体提供了关于外演变的关键数据.
- 形状的共存和外的进化是理解关闭外附近的核结构的关键现象.
研究的目的:
- 精确测量-79 (79Zn) 中1/2+同位素的激发能量.
- 为了研究核的演化和形状共存在Z=28和N=50双关闭的附近.
- 用先进的核结构计算来解释观察到的异构体状态.
主要方法:
- 使用JYFLTRAP双宁陷进行高精度质量测量.
- 使用ISOLTRAP多反射飞行时间质谱仪进行高精度质量测量.
- 最先进的外模型对角化和离散非直角外模型计算.
主要成果:
- 79Zn中的1/2+同位素被明确地放置在942(10) keV的激发能.
- 这种同位素在983{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}{\displaystyle 983}}
- 确定了低的变形入侵者状态,与邻近同位素中观察到的形状共存相一致.
结论:
- 79Zn中的1/2+同位素被解释为一个低矮的变形结构的带头.
- 这些发现强烈支持79Zn和80Zn的形状共存的发生,类似于78Ni.
- 这项研究加强了对核图中这一重要区域形状共存的理解.
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