dorsal/arxiv
View SchemaNonrelativistic double photoeffect on lithiumlike ions at high energies
| Authors | A. I. Mikhailov, I. A. Mikhailov, A. V. Nefiodov, G. Plunien |
|---|---|
| Categories | |
| ArXiv ID | physics/0605184 |
| URL | https://arxiv.org/abs/physics/0605184 |
| DOI | 10.1016/j.physleta.2006.02.055 |
Abstract
The total cross section for double ionization of lithiumlike ions by a high-energy photon is calculated in leading order of the nonrelativistic perturbation theory. The partial contributions due to simultaneous and sequential emissions of two electrons are taken into account. The cross section under consideration is shown to be related to those for double photoeffect on the ground and excited 2^{1,3}S states of heliumlike ions. The double-to-single ionization ratio is equal to R = 0.288/Z^2 for lithiumlike ions with moderate nuclear charge numbers Z. However, even for the lightest three-electron targets such as Li and Be^+, analytical predictions are found to be in good agreement with the numerical calculations performed within the framework of different rather involved approaches.
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"abstract": "The total cross section for double ionization of lithiumlike ions by a\nhigh-energy photon is calculated in leading order of the nonrelativistic\nperturbation theory. The partial contributions due to simultaneous and\nsequential emissions of two electrons are taken into account. The cross section\nunder consideration is shown to be related to those for double photoeffect on\nthe ground and excited 2^{1,3}S states of heliumlike ions. The double-to-single\nionization ratio is equal to R = 0.288/Z^2 for lithiumlike ions with moderate\nnuclear charge numbers Z. However, even for the lightest three-electron targets\nsuch as Li and Be^+, analytical predictions are found to be in good agreement\nwith the numerical calculations performed within the framework of different\nrather involved approaches.",
"arxiv_id": "physics/0605184",
"authors": [
"A. I. Mikhailov",
"I. A. Mikhailov",
"A. V. Nefiodov",
"G. Plunien"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1016/j.physleta.2006.02.055",
"title": "Nonrelativistic double photoeffect on lithiumlike ions at high energies",
"url": "https://arxiv.org/abs/physics/0605184"
},
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