dorsal/arxiv
View SchemaA semi-classical over-barrier model for charge exchange between highly charged ions and one-optical electron atoms
| Authors | F. Sattin |
|---|---|
| Categories | |
| ArXiv ID | physics/0001008 |
| URL | https://arxiv.org/abs/physics/0001008 |
| DOI | 10.1088/0953-4075/33/5/302 |
| Journal | Journal of Physics B vol. 33, 861 (2000); erratum vol. 33, 2377 (2000) |
Abstract
Absolute total cross sections for electron capture between slow, highly charged ions and alkali targets have been recently measured. It is found that these cross sections follow a scaling law with the projectile charge which is different from the one previously proposed basing on a classical over-barrier model (OBM) and verified using rare gases and molecules as targets. In this paper we develop a "semi-classical" (i.e. including some quantal features) OBM attempting to recover experimental results. The method is then applied to ion-hydrogen collisions and compared with the result of a sophisticated quantum-mechanical calculation. In the former case the accordance is very good, while in the latter one no so satisfactory results are found. A qualitative explanation for the discrepancies is attempted.
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"abstract": "Absolute total cross sections for electron capture between slow, highly\ncharged ions and alkali targets have been recently measured. It is found that\nthese cross sections follow a scaling law with the projectile charge which is\ndifferent from the one previously proposed basing on a classical over-barrier\nmodel (OBM) and verified using rare gases and molecules as targets. In this\npaper we develop a \"semi-classical\" (i.e. including some quantal features) OBM\nattempting to recover experimental results. The method is then applied to\nion-hydrogen collisions and compared with the result of a sophisticated\nquantum-mechanical calculation. In the former case the accordance is very good,\nwhile in the latter one no so satisfactory results are found. A qualitative\nexplanation for the discrepancies is attempted.",
"arxiv_id": "physics/0001008",
"authors": [
"F. Sattin"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1088/0953-4075/33/5/302",
"journal_ref": "Journal of Physics B vol. 33, 861 (2000); erratum vol. 33, 2377\n (2000)",
"title": "A semi-classical over-barrier model for charge exchange between highly charged ions and one-optical electron atoms",
"url": "https://arxiv.org/abs/physics/0001008"
},
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