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Radiative Transition Parameters in Atomic Lanthanum from Pseudo-Relativistic Hartree–Fock and Fully Relativistic Dirac–Hartree–Fock Calculations

1
Physique Atomique et Astrophysique, Université de Mons, B-7000 Mons, Belgium
2
IPNAS, Université de Liège, B-4000 Liège, Belgium
*
Author to whom correspondence should be addressed.
Atoms 2019, 7(1), 38; https://doi.org/10.3390/atoms7010038
Received: 23 January 2019 / Revised: 14 March 2019 / Accepted: 16 March 2019 / Published: 20 March 2019
(This article belongs to the Special Issue Atomic Data for Ions of Rare Earth Elements)
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Abstract

Calculated radiative transition probabilities and oscillator strengths are reported for 392 lines of neutral lanthanum (La I) atom in the spectral range from the near ultraviolet to the mid infrared. They were obtained using two different theoretical methods based on the pseudo-relativistic Hartree–Fock (HFR) and the fully relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) approaches, both including the most important intravalence and core-valence electron correlations. The quality of these radiative parameters was assessed through detailed comparisons between the results obtained using different physical models and between our theoretical results and the experimental data, where available. Of the total number of La I lines listed in the present work, about 60% have gf- and gA-values determined for the first time. View Full-Text
Keywords: atomic structure; oscillator strengths; transition probabilities; La I spectrum atomic structure; oscillator strengths; transition probabilities; La I spectrum
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Gamrath, S.; Palmeri, P.; Quinet, P. Radiative Transition Parameters in Atomic Lanthanum from Pseudo-Relativistic Hartree–Fock and Fully Relativistic Dirac–Hartree–Fock Calculations. Atoms 2019, 7, 38.

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