Convergence study of the close-coupling approach to positron-helium collisions
Recently the non-relativistic convergent close-coupling method has been extended into the relativistic domain [1]. When applied to electron impact collision processes for highly charged hydrogen-like ions, the RCCC method that utilizes relativistic kinematics and the Coulomb interaction in the absen...
| Main Authors: | , , , |
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| Format: | Conference Paper |
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Institute of Physics Publishing Ltd.
2010
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/23621 |
| _version_ | 1848751201027358720 |
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| author | Utamuratov, R. Kadyrov, Alisher Fursa, Dmitry Bray, Igor |
| author2 | R I Campeanu |
| author_facet | R I Campeanu Utamuratov, R. Kadyrov, Alisher Fursa, Dmitry Bray, Igor |
| author_sort | Utamuratov, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Recently the non-relativistic convergent close-coupling method has been extended into the relativistic domain [1]. When applied to electron impact collision processes for highly charged hydrogen-like ions, the RCCC method that utilizes relativistic kinematics and the Coulomb interaction in the absence of QED Breit and Mller corrections is suitable for target ions with atomic number Z up to Z 30. For Z larger than 30, such QED corrections become significant and must be included in the calculations. We have modified the RCCC computer code accordingly and report the results for Z = 100 selected excitation cross sections and for U91+ ionization cross sections which were found to be in good agreement with previous calculations of Fontes et al.[2]. |
| first_indexed | 2025-11-14T07:48:57Z |
| format | Conference Paper |
| id | curtin-20.500.11937-23621 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:48:57Z |
| publishDate | 2010 |
| publisher | Institute of Physics Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-236212023-01-13T07:56:31Z Convergence study of the close-coupling approach to positron-helium collisions Utamuratov, R. Kadyrov, Alisher Fursa, Dmitry Bray, Igor R I Campeanu J W Darewych A D Stauffer convergent close-coupling method Recently the non-relativistic convergent close-coupling method has been extended into the relativistic domain [1]. When applied to electron impact collision processes for highly charged hydrogen-like ions, the RCCC method that utilizes relativistic kinematics and the Coulomb interaction in the absence of QED Breit and Mller corrections is suitable for target ions with atomic number Z up to Z 30. For Z larger than 30, such QED corrections become significant and must be included in the calculations. We have modified the RCCC computer code accordingly and report the results for Z = 100 selected excitation cross sections and for U91+ ionization cross sections which were found to be in good agreement with previous calculations of Fontes et al.[2]. 2010 Conference Paper http://hdl.handle.net/20.500.11937/23621 10.1088/1742-6596/199/1/012021 Institute of Physics Publishing Ltd. unknown |
| spellingShingle | convergent close-coupling method Utamuratov, R. Kadyrov, Alisher Fursa, Dmitry Bray, Igor Convergence study of the close-coupling approach to positron-helium collisions |
| title | Convergence study of the close-coupling approach to positron-helium collisions |
| title_full | Convergence study of the close-coupling approach to positron-helium collisions |
| title_fullStr | Convergence study of the close-coupling approach to positron-helium collisions |
| title_full_unstemmed | Convergence study of the close-coupling approach to positron-helium collisions |
| title_short | Convergence study of the close-coupling approach to positron-helium collisions |
| title_sort | convergence study of the close-coupling approach to positron-helium collisions |
| topic | convergent close-coupling method |
| url | http://hdl.handle.net/20.500.11937/23621 |