Benchmark cross sections for electron-impact total single ionization of helium
We establish the total single ionization cross section for electron-impact ionization of helium, to an accuracy of few per cent, from near threshold to 1 keV. This is done fully ab initio using the convergent close-coupling method without the often-used frozen-core approximation. We find excellent a...
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| Format: | Journal Article |
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Institute of Physics Publishing Ltd.
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/30507 |
| _version_ | 1848753108450017280 |
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| author | Bray, Igor Fursa, Dmitry |
| author_facet | Bray, Igor Fursa, Dmitry |
| author_sort | Bray, Igor |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We establish the total single ionization cross section for electron-impact ionization of helium, to an accuracy of few per cent, from near threshold to 1 keV. This is done fully ab initio using the convergent close-coupling method without the often-used frozen-core approximation. We find excellent agreement with the most recent measurements of Rejoub et al (2002 Phys. Rev. A 65 042713) and Sorokin et al (2004 J. Phys. B: At. Mol. Opt. Phys. 37 3215), which are around 5% less than the previously used standard. |
| first_indexed | 2025-11-14T08:19:16Z |
| format | Journal Article |
| id | curtin-20.500.11937-30507 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:19:16Z |
| publishDate | 2011 |
| publisher | Institute of Physics Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-305072017-09-13T16:09:21Z Benchmark cross sections for electron-impact total single ionization of helium Bray, Igor Fursa, Dmitry Atomic and molecular physics We establish the total single ionization cross section for electron-impact ionization of helium, to an accuracy of few per cent, from near threshold to 1 keV. This is done fully ab initio using the convergent close-coupling method without the often-used frozen-core approximation. We find excellent agreement with the most recent measurements of Rejoub et al (2002 Phys. Rev. A 65 042713) and Sorokin et al (2004 J. Phys. B: At. Mol. Opt. Phys. 37 3215), which are around 5% less than the previously used standard. 2011 Journal Article http://hdl.handle.net/20.500.11937/30507 10.1088/0953-4075/44/6/061001 Institute of Physics Publishing Ltd. unknown |
| spellingShingle | Atomic and molecular physics Bray, Igor Fursa, Dmitry Benchmark cross sections for electron-impact total single ionization of helium |
| title | Benchmark cross sections for electron-impact total single ionization of helium |
| title_full | Benchmark cross sections for electron-impact total single ionization of helium |
| title_fullStr | Benchmark cross sections for electron-impact total single ionization of helium |
| title_full_unstemmed | Benchmark cross sections for electron-impact total single ionization of helium |
| title_short | Benchmark cross sections for electron-impact total single ionization of helium |
| title_sort | benchmark cross sections for electron-impact total single ionization of helium |
| topic | Atomic and molecular physics |
| url | http://hdl.handle.net/20.500.11937/30507 |