Triply excited three-electron systems--semiclassical model |
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Authors: | PV Grujić |
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Institution: | (1) Institute of Physics, P.O. Box 57, 11000 Belgrade, Yugoslavia and Faculty of Physics, P.O. Box 550, 11000 Belgrade, Yugoslavia, YU |
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Abstract: | We calculate rovibronic intrashell spectra of the triply highly excited atomic hydrogen dianion, helium anion and lithium
atom, within a simple semiclassical model. Zero-order electronic energy levels and half-lives are calculated for a number
of principal quantum numbers and approximate thresholds for the appearance of vibronic modes are estimated. Since no quantum-mechanical
and experimental data are available for the highly excited levels (N > 5), where the semiclassical models apply, no comparison with other results are possible at present. The problem of comparing
semiclassical and quantum-mechanical calculations for moderately large quantum numbers, which seem attainable by the present
day experimental technique, has been discussed.
Received: 16 September 1998 / Received in final form: 16 March 1999 |
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Keywords: | PACS 31 50 +w Excited states - 31 25 Jf Electron-correlation calculations for atoms and ions: excited states |
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