会议论文详细信息
29th International Conference on Photonic, Electronic, and Atomic Collisions | |
Completeness of the Configuration Interaction / Close Coupling expansion versus the relativistic formalism in R-matrix calculations | |
Fernández-Menchero, L.^1 ; Del Zanna, G.^2 ; Badnell, N.R.^1 | |
Department of Physics, University of Strathclyde, Glasgow | |
G4 0NG, United Kingdom^1 | |
Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge | |
CB3 0WA, United Kingdom^2 | |
关键词: Close coupling; Configuration interactions; Electron-impact excitation; Excited levels; R-matrix calculation; Relativistic effects; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/635/5/052034/pdf DOI : 10.1088/1742-6596/635/5/052034 |
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来源: IOP | |
【 摘 要 】
R-matrix calculations have different sources of inaccuracy. We analyze the differences in the final results caused by differences in three aspects of the calculation: the atomic structure of the target, the completeness of the close coupling expansion, and the method used to include relativistic effects in the Hamiltonian. We present the electron-impact excitation of the ion Be-like Al9+as a case study. We conclude that the completeness of the CI/CC expansion plays the most important role for the reliability of the results, mainly for the most highly-excited levels.
【 预 览 】
Files | Size | Format | View |
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Completeness of the Configuration Interaction / Close Coupling expansion versus the relativistic formalism in R-matrix calculations | 210KB | download |