论文标题
通过中子捕获反应的65NI的详细低自旋光谱法
Detailed low-spin spectroscopy of 65Ni via neutron capture reaction
论文作者
论文摘要
通过中子捕获反应$^{64} $ ni（n，$γ$）$^{65} $^{65} $ ni，使用fipps hpge hpge hpge hpge hpge array，对$^{65} $ ni核的低自旋结构进行了扩展研究。 $^{65} $ ni的级别方案大大扩展了，有2个新级别和87个新发现的过渡。还进行了角相关分析，使我们可以为多个状态分配旋转和平等，并确定所选$γ$转换的多极性混合比。将实验水平方案的低能部分（最高约1.4 meV）与蒙特卡洛壳模型计算进行了比较，该计算可预测所有状态的球形形状，除了9/2 $^+$和第二个激发1/2 $^ - $^ - $^ - $的固定变形状态。
An extended investigation of the low-spin structure of the $^{65}$Ni nucleus was performed at the Institut Laue-Langevin, Grenoble, via the neutron capture reaction $^{64}$Ni(n,$γ$)$^{65}$Ni, using the FIPPS HPGe array. The level scheme of $^{65}$Ni was significantly expanded, with 2 new levels and 87 newly found transitions. Angular correlation analyses were also performed, allowing us to assign spins and parities for a number of states, and to determine multipolarity mixing ratios for selected $γ$ transitions. The low-energy part of the experimental level scheme (up to about 1.4 MeV) was compared with Monte Carlo Shell Model calculations, which predict spherical shapes for all states, apart from the 9/2$^+$ and the second excited 1/2$^-$ states of oblate deformation.
