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Publication: High precision atomic theory for Li and Be+: QED shifts and isotope shifts

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Title High precision atomic theory for Li and Be+: QED shifts and isotope shifts
Authors/Editors* Z.-C. Yan, W. Nortershauser, and G.W.F. Drake
Where published* Phys. rev. Lett.
How published* Journal
Year* 2008
Volume 100
Number
Pages 243002 (4 pages)
Publisher
Keywords
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Abstract
High-precision results are presented for calculations of the nonrelativistic energies, relativistic corrections, and quantum electrodynamic corrections for the 2 2S, 2 2P, and 3 2S states of Li and Be+, using nonrelativistic wave functions expressed in Hylleraas coordinates. Bethe logarithms are obtained for the states of Be+. Finite mass corrections are calculated with sufficient accuracy to extract the nuclear charge radius from measurements of the isotope shift for the 2 2S-2 2P and 2 2S-3 2S transitions. The calculated ionization potential for Be+ is 146 882.923±0.005 cm-1.
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