The Zeeman line components of the magnetic-dipole (M1) 1s2 2s2 2 P1/2 -2P3/2 transition in boronlike Ar13+ were experimentally resolved by high-precision emission spectroscopy using the Heidelberg electron beam ion trap. We determined the gyromagnetic (g) factors of the ground and first-excited levels to be g1/2 =0.663(7) and g3/2 =1.333(2), respectively. This corresponds to a measurement of the g factor of a relativistic electron in a bound non- S state of a multielectron ion with a 1.5 parts-per-thousand accuracy. The results are compared to theoretical calculations by means of the configuration interaction Dirac-Fock-Sturmian method including electron correlation effects and additional quantum electrodynamic corrections. Our measurements show that the classical Landé g factor formula is sufficiently accurate to the present level of accuracy in few-electron ions of medium nuclear charge number Z.
R. Soria Orts and J. R. Crespo Lopez-Urrutia and H. Bruhns and A. J. Gonzalez and Z. Harman and U. D. Jentschura and C. H. Keitel and A. Lapierre and H. Tawara and I. I. Tupitsyn and J. H. Ullrich and A. V. Volotka, "Zeeman Splitting and g Factor of the 1s22s22p 2P3/2 and 2P1/2 Levels in Ar13+," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 76, no. 5, pp. 052501-1-052501-7, American Physical Society (APS), Nov 2007.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevA.76.052501
Keywords and Phrases
Electron Beams; Emission Spectroscopy; Excited States; Magnetic Fields; Quantum Theory; High-precision Emission Spectroscopy; Ion Trap; Zeeman Splitting; Magnetic Moments
International Standard Serial Number (ISSN)
Article - Journal
© 2007 American Physical Society (APS), All rights reserved.