Electron-correlation effects in the $g$-factor of light Li-like ions
| Autor: | Yerokhin, V. A., Pachucki, K., Puchalski, M., Harman, Z., Keitel, C. H. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 95, 062511 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.95.062511 |
| Popis: | 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 the unified theoretical predictions for the $g$-factor of light Li-like ions. Comment: 9 pages, 4 tables |
| Databáze: | arXiv |
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