Measurement of the Lamb shift in lithiumlike uranium (<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">U</mi></mrow><mrow><mn>8</mn><mn>9</mn><mo>+</mo></mrow></msup></mrow></math></span>)

J. Schweppe; A. Belkacem; L. Blumenfeld; Nelson Claytor; B. Feinberg; Harvey Gould; V. E. Kostroun; L. Levy; S. Misawa; J. R. Mowat; M. H. Prior

doi:10.1103/PhysRevLett.66.1434

Measurement of the Lamb shift in lithiumlike uranium ( $U^{89 +}$ )

J. Schweppe, A. Belkacem, L. Blumenfeld, Nelson Claytor, B. Feinberg, Harvey Gould, V. E. Kostroun, L. Levy, S. Misawa, J. R. Mowat, and M. H. Prior

Phys. Rev. Lett. 66, 1434 – Published 18 March 1991

Abstract

The $2^{2}$ $P_{1 / 2}$ - $2^{2}$ $S_{1 / 2}$ (lowest-excited-state to ground-state) energy splitting in lithiumlike uranium, which has large quantum-electrodynamic corrections, has been measured using Doppler-tuned spectrometry. Our result, 280.59±0.10 eV, is more precise than current theory and is an 80-fold improvement over the previous most precise measurement of the Lamb shift in (heliumlike) uranium.

Received 10 December 1990

DOI:https://doi.org/10.1103/PhysRevLett.66.1434

Authors & Affiliations

J. Schweppe, A. Belkacem, L. Blumenfeld, Nelson Claytor, B. Feinberg, Harvey Gould, V. E. Kostroun, L. Levy, S. Misawa, J. R. Mowat, and M. H. Prior

Chemical Sciences Division, Building 71-259, Lawrence Berkeley Laboratory
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Accelerator and Fusion Research Division, Building 51-208, Lawrence Berkeley Laboratory
One Cyclotron Road, Berkeley, California 94720