Shape coexistence and isospin symmetry in A=70 nuclei: Spectroscopy of the T=1 nucleus 70Kr
Shape coexistence and isospin symmetry in A=70 nuclei: Spectroscopy of the T=1 nucleus 70Kr
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A=70 原子核中的形状共存和同位旋对称性：T=1 原子核 70Kr 的光谱
DOI：
10.1016/j.physletb.2018.07.067
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发表时间：
2018
影响因子：
4.4
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
K. Wimmer;S. Koyama;et al.
用放射性70Kr束流的非弹性散射以及71、72Kr在中能下的一次和两次中子去除反应，在Tz=−1核70Kr中填充了激发态。根据观测到的γ-射线跃迁和重合，构造了70Kr能级方案。根据与镜像核70Se的比较，进行了初步的自旋和宇称归属。第二个2+态和对应的4个2+态的候选态表明在70Kr中存在形状共存。
Excited states in the T z=− 1 nucleus 70 Kr have been populated using inelastic scattering of a radioactive 70 Kr beam as well as one-and two-neutron removal reactions from 71, 72 Kr at intermediate beam energies. The level scheme of 70 Kr was constructed from the observed γ-ray transitions and coincidences. Tentative spin and parity assignments were made based on comparison with the mirror nucleus 70 Se. A second 2+ state and a candidate for the corresponding 4 2+ state suggest shape coexistence in 70 Kr.