• DOI:10.1103/PhysRevA.92.052505
• Corpus ID: 119105028

Multi-configuration Dirac-Hartree-Fock calculations of excitation energies, oscillator strengths and hyperfine structure constants for low-lying levels of Sm I

@article{Zhou2015MulticonfigurationDC,
  title={Multi-configuration Dirac-Hartree-Fock calculations of excitation energies, oscillator strengths and hyperfine structure constants for low-lying levels of Sm I},
  author={Fuyang Zhou and Yizhi Qu and Jiguang Li and Jianguo Wang},
  journal={arXiv: Atomic Physics},
  year={2015}
}

• Fuyang Zhou, Y. Qu, +1 author Jianguo Wang
• Published 15 September 2015
• Physics, Chemistry
• arXiv: Atomic Physics

The multi-configuration Dirac-Hartree-Fock method was employed to calculate the total and excitation energies, oscillator strengths and hyperfine structure constants for low-lying levels of Sm I. In the first-order perturbation approximation, we systematically analyzed correlation effects from each electrons and electron pairs. It was found that the core correlations are of importance for physical quantities concerned. Based on the analysis, the important configuration state wave functions were selected to constitute atomic state wave functions. By using this computational model, our excitation energies, oscillator strengths, and hyperfine structure constants are in better agreement with experimental values than earlier theoretical works.