Photoionization and excitation of atomic barium from the (6s6p)1P1ostate
- 14 August 1991
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 24 (15) , 3359-3371
- https://doi.org/10.1088/0953-4075/24/15/007
Abstract
A previous Breit-Pauli R-matrix calculation for photoionization of the excited initial state (6s6p) 1P1o of atomic barium (Bartschat and McLaughlin, 1990) has been extended over a wide range of energies and various final ionic states. The complicated resonance structure was fully resolved and has been analysed in terms of quantum defect theory. While the agreement of this fully ab initio calculation with other recent theoretical and experimental work is quite satisfactory, the use of a semi-empirical core potential may be necessary to further improve the agreement between experimental and theoretical resonance positions.Keywords
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