Radiative lifetime and oscillator strength determinations in potassium ions (K V, K VI and K VII) |
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| Authors: | É Biémont H-P Garnir P-H Lefèbvre P Palmeri L Philippart P Quinet D Rostohar C J Zeippen |
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| Institution: | (1) Institut de Physique Nucléaire, Atomique et de Spectroscopie, Université de Liège, Sart Tilman (Bat. B15), B-4000 Liège, Belgium;(2) Astrophysique et Spectroscopie, Université de Mons-Hainaut, B-7000 Mons, Belgium;(3) UMR 8102 (associée au CNRS et à l'Université Paris-7) et LUTh, Observatoire de Paris, F-92195 Meudon, France |
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| Abstract: | Oscillator strengths have been calculated for the transitions depopulating levels of the 3s23p3, 3s3p4 configurations of K V, of the 3s23p2, 3s3p3 configurations of K VI and of the 3s23p, 3s3p2, 3p3 and 3s3p3d configurations of K VII. A multiconfiguration Dirac-Fock method, incorporating the relativistic two-body Breit
interaction and quantum electrodynamics corrections due to self-energy and vacuum polarization, has been used for the calculations.
The reliability of this approach has been tested by comparison with relativistic Hartree-Fock calculations and also with some
experimental measurements performed by beam-foil spectroscopy at a beam energy of 1.7 MeV. |
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| Keywords: | 32 70 Cs Oscillator strengths lifetimes transition moments 32 30 -r Atomic spectra 31 25 -v Electron correlation calculations for atoms and molecules |
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