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Theoretical energies for the n = 1 and 2 states of the helium isoelectronic sequence up to Z = 100The unified method described previously for combining high-precision nonrelativistic variational calculations with relativistic and quantum electrodynamic corrections is applied to the 1s2 1S0, 1s2s 1S0, 1s2s 1S0, 1s2s 3S1, 1s2p 1P1, and 1s2p 3P(0.1,2) states of helium-like ions. Detailed tabulations are presented for all ions in the range Z = 2-100 and are compared with a wide range of experimental data up to (Kr-34)+. The results for (U-90)+ significantly alter the recent Lamb shift measurement of Munger and Gould (1986) from 70.4 + or - 8.3 to 71.0 + or - 8.3 eV, in comparison with a revised theoretical value of 74.3 + or - 0.4 eV. The improved agreement is due to the inclusion of higher order two-electron corrections in the present work.
Document ID
19890031434
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Drake, G. W.
(Windsor, University Canada)
Date Acquired
August 14, 2013
Publication Date
July 1, 1988
Publication Information
Publication: Canadian Journal of Physics
Volume: 66
ISSN: 0008-4204
Subject Category
Atomic And Molecular Physics
Accession Number
89A18805
Funding Number(s)
CONTRACT_GRANT: NSF PHY-82-17853
Distribution Limits
Public
Copyright
Other

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