Theoretical photoionization processes for aluminum-like P-2
Theoretical photoionization processes for aluminum-like P-2
复制标题
类铝 P-2 的理论光电离过程
DOI：
10.1140/epjd/e2016-60731-7
复制
发表时间：
2016
影响因子：
1.8
通讯作者：
Duan Jie
中科院分区：
文献类型：
--
作者：
Wang HongBin;Jiang Gang;Duan Jie
摘要本文首次用diracr -矩阵方法研究了类al P2+在30-43.5 eV光子能量范围内基态和亚稳态的理论光离截面，得到了偶极子长度和速度形式的良好吻合。讨论了部分光离对基态和亚稳态总PI的影响。我们的理论结果与最新的实验测量结果是一致的，只是发现了一些差异。通道耦合效应在类al P2+的光电离中起着重要作用。得到了共振能和量子缺陷，并对理论和实验数据进行了比较。值得注意的是，理论共振高达0.28 eV。我们的结果可以为进一步研究类al P2+的PI在理论和实验上提供参考，也可以作为对Opacity Project TOP基础结果的补充。图形抽象
AbstractThe theoretical photoionization cross sections for the ground and metastable states of Al-like P2+are first time investigated in the photon energy range of 30–43.5 eV by the DiracR-matrix method, and a good agreement between the dipole length and velocity form is achieved. The effects of the partial photoionization on the total PI of ground and metastable states are discussed. Our theoretical results are consistent with the latest experimental measurement, only some discrepancies are found. The channel coupling effects play an important role in the photoionization of Al-like P2+. The resonance energies and quantum defects are obtained, where a comparison between the theoretical and experimental data is made. It is worth noting that the theoretical resonance is as large as 0.28 eV. Our results can serve as a reference to further study the PI of Al-like P2+in theory and experiment and be regarded as a supplement for Opacity Project TOP base results.Graphical abstract