Electron-correlation effects in the g factor of light Li-like ions

Yerokhin, V. A.; Pachucki, K.; Puchalski, M.; Harman, Z.; Keitel, C. H.

doi:10.1103/PhysRevA.95.062511

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Electron-correlation effects in the g factor of light Li-like ions

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Harman, Z.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

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Citation

Yerokhin, V. A., Pachucki, K., Puchalski, M., Harman, Z., & Keitel, C. H. (2017). Electron-correlation effects in the g factor of light Li-like ions. Physical Review A, 95(6): 062511. doi:10.1103/PhysRevA.95.062511.

Cite as: https://hdl.handle.net/21.11116/0000-0000-FA32-E

Abstract

We investigate electron-correlation effects in the g factor of the ground state of Li-like ions. Our calculations are performed within the nonrelativistic quantum electrodynamics (NRQED) expansion up to two leading orders in the fine-structure constant alpha, alpha(2), and alpha(3). The dependence of the NRQED results on the nuclear charge number Z is studied and the individual 1/Z-expansion contributions are identified. Combining the obtained data with the results of the all-order (in Z alpha) calculations performed within the 1/Z expansion, we derive unified theoretical predictions for the g factor of light Li-like ions.