Structure of the neutron-rich nucleus Mg30
Structure of the neutron-rich nucleus Mg30
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富中子核 Mg30 的结构
DOI：
10.1103/physrevc.102.054327
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发表时间：
2020
影响因子：
3.1
通讯作者：
Otsuka T.
中科院分区：
文献类型：
--
作者：
Nishibata H.;Tajiri K.;Shimoda T.;Odahara A.;Morimoto S.;Kanaya S.;Yagi A.;Kanaoka H.;Pearson M. R.;Levy C. D. P.;Kimura M.;Tsunoda N.;Otsuka T.
用自旋极化能谱研究了位于“反转岛”附近的丰中子核的结构。从详细的重合关系看，年又建立了九个新的国家。的自旋极化，使公司的自旋宇称分配的七个国家在通过空间不对称性的射线计数与射线重合。基于实验信息，我们发现各种特征结构共存于：（i）基态类振动带，（ii）在1.788MeV的态上建立的变形带，（iii）在3.543MeV的态上建立的类振动带，（iv）在5MeV附近与大跃迁几率相关的四个态：球形性质的态和集体性质的态。实验结果与CHFBLQRPA，AMDGCM和EEdf1相互作用的大尺度壳模型的三个理论计算进行了比较。所有这些理论都合理地再现了这三个带。
Structure of the neutron-rich nucleus, which is located close to the region of the“island of inversion,” has been investigated byspectroscopy of spin-polarized. From the detailedcoincidence relations, nine new states have been established in. The spin-polarization ofenabled firm spin-parity assignments for seven states inby means of the spatial asymmetry of-ray counts in coincidence with therays. Based on the experimental information, it is shown that various characteristic structures coexist in: (i) the ground-state vibrational-like band, (ii) the deformed band built on thestate at 1.788 MeV, (iii) the-vibrational band built on thestate at 3.543 MeV, and (iv) four states around 5 MeV associated with large-transition probabilities:andstates with spherical nature,andstates with collective nature. The experimental results are compared with three theoretical calculations of the CHFBLQRPA, the AMDGCM, and the large-scale shell model with the EEdf1 interaction. All these theories reasonably reproduce the three bands.