Evidence Against Nuclear Polarization as Source of Fine-Structure Anomalies in Muonic Atoms
A long-standing problem of fine-structure anomalies in muonic atoms is revisited by considering the splittings Δ2 = 2 3/2− 2 1/2 in muonic 90Zr, 120Sn, and 208Pb and Δ3 = 3 3/2− 3 1/2 in muonic 208Pb. State-of-the-art techniques from both nuclear and atomic physics are brought together in or...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/215998 |
| Acceso en línea: | https://hdl.handle.net/2445/215998 |
| Access Level: | acceso abierto |
| Palabra clave: | Electrodinàmica quàntica Àtoms Molècules Quantum electrodynamics Atoms Molecules |
| Sumario: | A long-standing problem of fine-structure anomalies in muonic atoms is revisited by considering the splittings Δ2 = 2 3/2− 2 1/2 in muonic 90Zr, 120Sn, and 208Pb and Δ3 = 3 3/2− 3 1/2 in muonic 208Pb. State-of-the-art techniques from both nuclear and atomic physics are brought together in order to perform the most comprehensive to date calculations of nuclear-polarization energy shifts. Barring the more subtle case of −208Pb, the results suggest that the dominant calculation uncertainty is much smaller than the persisting discrepancies between theory and experiment. We conclude that the resolution to the anomalies is likely to be rooted in refined quantum-electrodynamics corrections or even some other previously unaccounted-for contributions. |
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