dorsal/arxiv
View SchemaHigher-order binding corrections to the Lamb shift of 2P states
| Authors | U. D. Jentschura, K. Pachucki |
|---|---|
| Categories | |
| ArXiv ID | physics/0011008 |
| URL | https://arxiv.org/abs/physics/0011008 |
| DOI | 10.1103/PhysRevA.54.1853 |
| Journal | Phys.Rev. A54 (1996) 1853-1861 |
Abstract
We present an improved calculation of higher-order corrections to the one-loop self energy of 2P states in hydrogen-like systems with small nuclear charge Z. The method is based on a division of the integration with respect to the photon energy into a high- and a low-energy part. The high-energy part is calculated by an expansion of the electron propagator in powers of the Coulomb field. The low-energy part is simplified by the application of a Foldy-Wouthuysen transformation. This transformation leads to a clear separation of the leading contribution from the relativistic corrections and removes higher order terms. The method is applied to the 2P_{1/2} and 2P_{3/2} states in atomic hydrogen. The results lead to new theoretical values for the Lamb shifts and the fine structure splitting.
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"abstract": "We present an improved calculation of higher-order corrections to the\none-loop self energy of 2P states in hydrogen-like systems with small nuclear\ncharge Z. The method is based on a division of the integration with respect to\nthe photon energy into a high- and a low-energy part. The high-energy part is\ncalculated by an expansion of the electron propagator in powers of the Coulomb\nfield. The low-energy part is simplified by the application of a\nFoldy-Wouthuysen transformation. This transformation leads to a clear\nseparation of the leading contribution from the relativistic corrections and\nremoves higher order terms. The method is applied to the 2P_{1/2} and 2P_{3/2}\nstates in atomic hydrogen. The results lead to new theoretical values for the\nLamb shifts and the fine structure splitting.",
"arxiv_id": "physics/0011008",
"authors": [
"U. D. Jentschura",
"K. Pachucki"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.54.1853",
"journal_ref": "Phys.Rev. A54 (1996) 1853-1861",
"title": "Higher-order binding corrections to the Lamb shift of 2P states",
"url": "https://arxiv.org/abs/physics/0011008"
},
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