Spin and parity determination of the 3.004-MeV level in Al27: Its low-lying multiplet structure
Spin and parity determination of the 3.004-MeV level in Al27: Its low-lying multiplet structure
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Al27 中 3.004-MeV 能级的自旋和宇称测定：其低位多重态结构
DOI：
10.1103/physrevc.100.014307
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发表时间：
2019
影响因子：
3.1
通讯作者：
Utsuno Y.
中科院分区：
文献类型：
--
作者：
Shizuma T.;Omer M.;Hajima R.;Shimizu N.;Utsuno Y.
通过测量由极化光子共振吸收填充的能级发射的辐射的角关联函数，确定了3.004-MeV能级的自旋和宇称。核共振荧光实验是在杜克大学的高强度射线源（）装置上用准单能线偏振光子束进行的。通过测量的角分布比和方位角强度不对称性与理论预言的比较，推导出了中能级的自旋和宇称。观察到的共振特性进行了比较壳模型计算使用的普遍相互作用。蒙特卡罗壳层模型计算也进行了调查的低能结构。
The spin and parity of the 3.004-MeV level inhave been determined by measuring the angular correlation function of radiation emitted from levels populated by resonant absorption of polarized photons. The nuclear resonance fluorescence experiments were carried out at the High Intensity-ray Source () facility at Duke University using quasimonoenergetic linearly polarized photon beams. The spin and parity of levels inwere deduced from a comparison of the measured angular distribution ratios and azimuthal intensity asymmetries with theoretical predictions. The observed resonance properties were compared with shell model calculations using the universalinteraction. Monte Carlo shell model calculations were also performed to investigate the low-energy structure of.