论文标题
$^{63} \ mathrm {ni} $的核水平密度和$γ$ -Ray的强度函数
Nuclear Level Density and $γ$-ray Strength Function of $^{63}\mathrm{Ni}$
论文作者
论文摘要
使用OSLO方法研究了$^{63} \ Mathrm {Ni} $的核水平密度（NLD）和$γ$ -Ray强度功能（$γ$ SF）。将提取的NLD与使用颗粒蒸发和中子共振间距发现的NLD与以前的测量进行了比较。发现$γ$ SF具有强大的低能增强功能，可以根据大规模壳模型计算将其解释为M1强度。使用OSLO方法测量的$γ$ SFS的比较，用于各种$ \ Mathrm {Ni} $同位素，揭示了强度以下$ 5 $ MEV的系统变化，质量增加。
The nuclear level density (NLD) and $γ$-ray strength function ($γ$SF) of $^{63}\mathrm{Ni}$ have been investigated using the Oslo method. The extracted NLD is compared with previous measurements using particle evaporation and those found from neutron resonance spacing. The $γ$SF was found to feature a strong low energy enhancement that could be explained as M1 strength based on large scale shell model calculations. Comparison of $γ$SFs measured with the Oslo method for various $\mathrm{Ni}$ isotopes reveals systematic changes to the strength below $5$ MeV with increasing mass.
