g9/2轨道在A = 60区域集体发展中的作用：~（61）Co的情况
The role of the g9/2 orbital in the development of collectivity in the A = 60 region: The case of 61Co
摘要：
利用γ射线能谱仪和碎片质量分析仪（FMA），在能量为275、290和320 MeV的束流条件下，对~（61）Co与~（26）Mg（~（48）Ca，~（2a 4）npg）反应后的能级结构进行了广泛的研究。低自旋结构的壳模型计算的框架内使用GXPF 1A有效的相互作用进行了讨论。在自旋I = 41/2和（43/2），激发能分别为17和20 MeV的情况下，建立了由拉伸E2跃迁组成的两个准转动带.这些被解释为建立在中子ν（g9/2）2组态与质子πp3/2态耦合的基础上的签名伙伴，基于曲柄壳模型（CSM）计算和与邻近核的观测结果的比较。此外，四个I = 1的带被填充到高自旋，与yraast偶极子带解释为剪切机制的可能候选者，一个过程中很少观察到迄今为止在这个质量区域。
英文摘要：
An extensive study of the level structure of 61Co has been performed following the complex 26Mg(48Ca, 2a4npg)61Co reaction at beam energies of 275, 290 and 320 MeV using Gammasphere and the Fragment Mass Analyzer (FMA). The low-spin structure is discussed within the framework of shell-model calculations using the GXPF1A effective interaction. Two quasi-rotational bands consisting of stretched-E2 transitions have been established up to spins I = 41/2 and (43/2), and excitation energies of 17 and 20 MeV, respectively. These are interpreted as signature partners built on a neutron ν(g9/2)2 configuration coupled to a proton πp3/2 state, based on Cranked Shell Model (CSM) calculations and comparisons with observations in neighboring nuclei. In addition, four I = 1 bands were populated to high spin, with the yrast dipole band interpreted as a possible candidate for the shears mechanism, a process seldom observed thus far in this mass region.
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