R-matrix analysis of positions and widths of perturbed 7sng J=4 series of barium
- 28 February 1994
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 27 (4) , 699-713
- https://doi.org/10.1088/0953-4075/27/4/009
Abstract
The positions and autoionization widths of the 7sng J=4 levels of barium have been calculated using various procedures based on the eigenchannel R-matrix method. The calculations perfectly reproduce the experimental data recently obtained for the 7sng 1G4 levels. The localized perturbers of the 7sng series are unambiguously identified. The anomalous behaviour of energy positions and widths of high lying 7sng levels are ascribed to 4f8p levels. Line narrowing effects are predicted for 7sng 3G4 levels near n=17.Keywords
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