Energy, fine-structure, and hyperfine-structure studies of the core-excited states 1s2s2p2(5P) and 1s2p3(5S) for Be-like systems

Han Y. Yang and Kwong T. Chung
Phys. Rev. A 51, 3621 – Published 1 May 1995
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Abstract

Variational calculations using multiconfiguration interaction wave functions are carried out on the 1s2s2p2(5P) and the 1s2p3(5S) states for the Be i isoelectronic sequence from Z=3–10. For each species, the upper bound, the nonrelativistic energy, the transition wavelength, the oscillator strengths, the radiative lifetime, the fine structure, the hyperfine parameters, and coupling constants are reported. The relativistic corrections and the mass polarization are included. The upper bounds and the nonrelativistic energies obtained are much lower than the previously published values for each member of the Be i isoelectronic sequence. The calculated fine-structure results are compared with the existing theoretical and experimental data. The predicted results of the hyperfine structure in this investigation provide useful data in the experimental analysis of fine-structure transitions between the 1s2s2p2(5P) and the 1s2p3(5S) states for berylliumlike isoelectronic sequence spectra.

  • Received 29 December 1994

DOI:https://doi.org/10.1103/PhysRevA.51.3621

©1995 American Physical Society

Authors & Affiliations

Han Y. Yang and Kwong T. Chung

  • Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202

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Issue

Vol. 51, Iss. 5 — May 1995

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