Toward calculations with spectroscopic accuracy: the 2s22p 2Po 3/2 – 2s2p2 44P5/2 Excitation Energy in Boron

Published

October 9, 2013

Author(s)

Charlotte F. Fischer, S. Verdebout, Michel Godefroid, P. Rynkun, P. Jonsson, G. Gaigalas

Abstract

No lines have been observed for transitions between the doublet and quartet levels of B i. Consequently,energy levels based on observation for the latter are obtained through extrapolation of wavelengths along the iso-electronic sequence for the 2s22p 2Po 3/2 – 2s2p2 4P5/2 transition. In this paper, accurate theoretical excitation energies are reported for B i that include both relativistic effects in the Breit-Pauli approximation and a finite mass correction. Results are compared with extrapolated values from observed data. For B i our estimate of the excitation energy, 28959±5 cm-1, is in better agreement with the values obtained by Edl¿en et al. (1969) than those reported by Kramida and Ryabtsev (2007). Our method is validated by applying the same procedure to the separation of these levels in C ii.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Pub Type

Journals

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https://doi.org/10.48550/arXiv.1310.2394

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Keywords

boron, correlation, energy levels, finite mass effect, partitioned correlation methods, variational methods

Citation

Fischer, C. , Verdebout, S. , Godefroid, M. , Rynkun, P. , Jonsson, P. and Gaigalas, G. (2013), Toward calculations with spectroscopic accuracy: the 2s²2p ²Po _3/2 – 2s2p² ⁴⁴P5/2 Excitation Energy in Boron, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://doi.org/10.48550/arXiv.1310.2394, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=914844 (Accessed October 14, 2025)