The lifetime of the Ar13+ 1s22s22p2Po3/2 metastable level was determined at the Heidelberg Electron Beam Ion Trap to be 9.573(4)(5)ms(stat)(syst). The accuracy level of one per thousand makes this measurement sensitive to quantum electrodynamic effects like the electron anomalous magnetic moment (EAMM) and to relativistic electron-electron correlation effects like the frequency-dependent Breit interaction. Theoretical predictions, adjusted for the EAMM, cluster about a lifetime that is approximately 3σ shorter than our experimental result.
"Relativistic Electron Correlation, Quantum Electrodynamics, and the Lifetime of the 1s22s22p2Po3/2 Level in Boronlike Argon," Physical Review Letters, vol. 95, no. 18, pp. 183001-1-183001-4, American Physical Society (APS), Oct 2005.
The definitive version is available at https://doi.org/10.1103/PhysRevLett.95.183001
Keywords and Phrases
Correlation Effects; Heidelberg Electron Beam; Ion Trap; Quantum Electrodynamics; Argon; Electrodynamics; Magnetic Moments; Natural Frequencies; Quantum Theory
International Standard Serial Number (ISSN)
Article - Journal
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