1s2s2p(2)3s 6P - 1s2p(3)3s 6S° transitions in OIV

[en] 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 1s2s2p23s 6P–1s2p33s 6So are investigated by beam-foil spectroscopy in the XUV spectral region. The predicted transition wavelengths agree with the experiment. The higherorder 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.

Disciplines :

Physics

Author, co-author :

Lin, B.

Berry, H. G.

Shibata, T.

Livingston, A. E.

Garnir, Henri-Pierre ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie

Bastin, Thierry ; Université de Liège - ULiège > Département de physique > Spectroscopie atomique et Physique des atomes froids

Désesquelles, J.

Savukov, I.

Language :

English

Title :

1s2s2p(2)3s 6P - 1s2p(3)3s 6S° transitions in OIV

Publication date :

2003

Journal title :

Physical Review. A, Atomic, molecular, and optical physics

ISSN :

1050-2947

eISSN :

1094-1622

Publisher :

American Physical Society, College Park, United States - Maryland

Volume :

Pages :

062507:1-9

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 07 December 2009

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