The 2S1/2-2P1/2 Lamb shift in He+
The current theoretical status of the Lamb shift in He+ is discussed. Recent calculations of two-loop binding corrections to the Lamb shift significantly shift the theoretical value of the "classic" Lamb shift in He+, i.e., of the 2S1/2-2P1/2 interval. In this brief article, we present a new (theoretical) value for this interval that reads 14041.474(42) MHz. The theoretical uncertainty is reduced as well as the discrepancy between theory and experiment. Planned measurements should be of help in further elucidating the situation.
U. D. Jentschura and G. W. Drake, "The 2S1/2-2P1/2 Lamb shift in He+," Canadian Journal of Physics, vol. 82, no. 2, pp. 103-108, National Research Council of Canada, Feb 2004.
The definitive version is available at https://doi.org/10.1139/p03-114
Keywords and Phrases
Anisotropy; Electrodynamics; Error Analysis; Hydrogen; Quantum Theory; Statistical Methods; Vacuum; Atomic Systems; Electron Mass; Lamb Shift; Quantum Electrodynamics (QED); Helium
International Standard Serial Number (ISSN)
Article - Journal
© 2004 National Research Council of Canada, All rights reserved.