Absorption oscillator strengths to autoionizing states in Li, N, and F and their isoelectronic sequences

15 March 1976

journal article
Published by Canadian Science Publishing in Canadian Journal of Physics

Vol. 54 (6) , 689-694
https://doi.org/10.1139/p76-077

Abstract

We have calculated the photoabsorption oscillator strengths of the one and two-electron transitions Li 1s²2s²S → 2s²2p²P⁰, NI 2s²2p³²P⁰ → 2s2p⁴²D, NI 2s²2p³²D⁰ → 2s2p⁴²D, and FI 2s²2p⁵²P⁰ → 2s2p⁶²S, whose upper states are autoionizing, according to a new first order theory of oscillator strengths (FOTOS). These oscillator strengths are often very small and are sensitive to the details of electron–electron interactions. Also computed are the f values for ions in the N and F isoelectronic sequences. Comparison of our theory with three very recent beam-foil values in OII, FIII, and NeII shows excellent agreement.

Keywords

OSCILLATIONS

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