R-matrix study on perturbed Rydberg series of atoms. III. The 4sns1S and 4snd1D Rydberg series of calcium
- 14 June 1991
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 24 (11) , 2641-2652
- https://doi.org/10.1088/0953-4075/24/11/007
Abstract
For pt.II, see ibid., vol.22, no.22, p.3631-45 (1989). The 4sns 1S and 4snd 1D Rydberg series of calcium are studied by a multichannel approach of the R-matrix method. It is shown that the energy levels of bound Rydberg series are obtained as the energies which satisfy the equation det mod aRij- delta ijXi mod =O. Here Xi stands for the reciprocal of the logarithmic derivative of the Whittaker function which approximates the wavefunction of a Rydberg electron of the ith channel. The agreement of the calculated values with experiment is excellent for the 1S series but is somewhat poor for the 1D series.Keywords
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