Threshold behavior of positronium formation in positron-alkali-metal scattering
We consider positron scattering on the alkali-metal atoms of Li, Na, and K at very low energies, where only the elastic scattering and positronium formation in the ground state are the two open channels. Utilizing the recently developed two-center convergent close-coupling method [ Lugovskoy, Kadyro...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/20445 |
| _version_ | 1848750306923380736 |
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| author | Lugovskoy, Andrey Utamuratov, Ravshanbek Kadyrov, Alisher Stelbovics, Andris Bray, Igor |
| author_facet | Lugovskoy, Andrey Utamuratov, Ravshanbek Kadyrov, Alisher Stelbovics, Andris Bray, Igor |
| author_sort | Lugovskoy, Andrey |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We consider positron scattering on the alkali-metal atoms of Li, Na, and K at very low energies, where only the elastic scattering and positronium formation in the ground state are the two open channels. Utilizing the recently developed two-center convergent close-coupling method [ Lugovskoy, Kadyrov, Bray and Stelbovics, Phys. Rev. A 82 062708 (2010)] we investigate the behavior of the cross sections as the impact energy goes to zero and demonstrate their convergence. The study sets quantitative benchmarks for any rigorous theoretical treatment of the collision problems. |
| first_indexed | 2025-11-14T07:34:45Z |
| format | Journal Article |
| id | curtin-20.500.11937-20445 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:34:45Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-204452017-09-13T13:50:23Z Threshold behavior of positronium formation in positron-alkali-metal scattering Lugovskoy, Andrey Utamuratov, Ravshanbek Kadyrov, Alisher Stelbovics, Andris Bray, Igor We consider positron scattering on the alkali-metal atoms of Li, Na, and K at very low energies, where only the elastic scattering and positronium formation in the ground state are the two open channels. Utilizing the recently developed two-center convergent close-coupling method [ Lugovskoy, Kadyrov, Bray and Stelbovics, Phys. Rev. A 82 062708 (2010)] we investigate the behavior of the cross sections as the impact energy goes to zero and demonstrate their convergence. The study sets quantitative benchmarks for any rigorous theoretical treatment of the collision problems. 2013 Journal Article http://hdl.handle.net/20.500.11937/20445 10.1103/PhysRevA.87.042708 American Physical Society fulltext |
| spellingShingle | Lugovskoy, Andrey Utamuratov, Ravshanbek Kadyrov, Alisher Stelbovics, Andris Bray, Igor Threshold behavior of positronium formation in positron-alkali-metal scattering |
| title | Threshold behavior of positronium formation in positron-alkali-metal scattering |
| title_full | Threshold behavior of positronium formation in positron-alkali-metal scattering |
| title_fullStr | Threshold behavior of positronium formation in positron-alkali-metal scattering |
| title_full_unstemmed | Threshold behavior of positronium formation in positron-alkali-metal scattering |
| title_short | Threshold behavior of positronium formation in positron-alkali-metal scattering |
| title_sort | threshold behavior of positronium formation in positron-alkali-metal scattering |
| url | http://hdl.handle.net/20.500.11937/20445 |