<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mn>1</mn><mi>s</mi><mn>2</mn><mi>s</mi><mn>2</mn><mi>p</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow><mn>3</mn><mi>s</mi><mrow><msup><mrow><mi></mi></mrow><mrow><mn>6</mn></mrow></msup></mrow><mi>P</mi><mo>–</mo><mrow><msup><mrow><mn>1</mn><mi>s</mi><mn>2</mn><mi>p</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow><mn>3</mn><mi>s</mi><mrow><msup><mrow><mi></mi></mrow><mrow><mn>6</mn></mrow></msup></mrow><mrow><msup><mrow><mi>S</mi></mrow><mrow><mi>o</mi></mrow></msup></mrow></math></span> Transitions in O <span class="sc">IV</span>

Bin Lin; H. Gordon Berry; Tomohiro Shibata; A. Eugene Livingston; Henri-Pierre Garnir; Thierry Bastin; J. Désesquelles; Igor Savukov

doi:10.1103/PhysRevA.67.062507

${1 s 2 s 2 p}^{2} 3 s^{6} P - {1 s 2 p}^{3} 3 s^{6} S^{o}$ Transitions in O IV

Bin Lin, H. Gordon Berry, Tomohiro Shibata, A. Eugene Livingston, Henri-Pierre Garnir, Thierry Bastin, J. Désesquelles, and Igor Savukov

Phys. Rev. A 67, 062507 – Published 26 June 2003

Abstract

The energies and lifetimes of doubly excited sextet states of boron-like O IV, F V, and Ne VI are calculated with the multiconfiguration Hartree-Fock approach, including QED and higher-order corrections, and also with the multiconfiguration Dirac-Fock GRASP code. The wavelengths and transition rates of electric-dipole transitions from the inner-shell excited terms ${1 s 2 s 2 p}^{2} 3 s^{6} P - {1 s 2 p}^{3} 3 s^{6} S^{o}$ are investigated by beam-foil spectroscopy in the XUV spectral region. The predicted transition wavelengths agree with the experiment. The higher-order corrections, fine structures, and spectrum with high wavelength resolution are found to be critically important in these comparisons. Nine new lines have been identified. The ground sextet states of boronlike atoms are metastable and well above several ionization levels. These are possible candidates for XUV and soft x-ray lasers.

Received 8 January 2003

DOI:https://doi.org/10.1103/PhysRevA.67.062507

Authors & Affiliations

Bin Lin^1,*, H. Gordon Berry^1,†, Tomohiro Shibata¹, A. Eugene Livingston¹, Henri-Pierre Garnir², Thierry Bastin², J. Désesquelles³, and Igor Savukov¹

¹Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
²IPNAS, University of Liege, B4000 Liege, Belgium
³Lab Spectrometrie Ion & Mol, University of Lyon 1, F-69622 Villeurbanne, France

^*Electronic address: blin@nd.edu; URL: http://www.nd.edu/∼blin/
^†Electronic address: Berry.20@nd.edu; URL: http://www.science.nd.edu/physics/Faculty/berry.html

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Vol. 67, Iss. 6 — June 2003

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