Vacuum polarization corrections to hyperfine structure in many-electron atoms
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866912284962455552 |
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| author | Hasted, J. C. Fairhall, C. J. Smits, O. R. Roberts, B. M. Ginges, J. S. M. |
| author_facet | Hasted, J. C. Fairhall, C. J. Smits, O. R. Roberts, B. M. Ginges, J. S. M. |
| contents | We perform a theoretical study of vacuum polarization corrections to the hyperfine structure in many-electron atoms. Calculations are performed for systems of interest for precision atomic tests of fundamental physics belonging to the alkali-metal atoms and singly-ionized alkaline earths. The vacuum polarization is considered in the Uehling approximation, and we study the many-body effects core relaxation, core polarization, and valence-core correlations in the relativistic framework. We find that for s states, the relative vacuum polarization correction may be well-approximated by that for hydrogenlike ions, though for all other states account of many-body effects -- in particular, the polarization of the core -- is needed to obtain the correct sign and magnitude of the correction. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_17979 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Vacuum polarization corrections to hyperfine structure in many-electron atoms Hasted, J. C. Fairhall, C. J. Smits, O. R. Roberts, B. M. Ginges, J. S. M. Atomic Physics We perform a theoretical study of vacuum polarization corrections to the hyperfine structure in many-electron atoms. Calculations are performed for systems of interest for precision atomic tests of fundamental physics belonging to the alkali-metal atoms and singly-ionized alkaline earths. The vacuum polarization is considered in the Uehling approximation, and we study the many-body effects core relaxation, core polarization, and valence-core correlations in the relativistic framework. We find that for s states, the relative vacuum polarization correction may be well-approximated by that for hydrogenlike ions, though for all other states account of many-body effects -- in particular, the polarization of the core -- is needed to obtain the correct sign and magnitude of the correction. |
| title | Vacuum polarization corrections to hyperfine structure in many-electron atoms |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2409.17979 |