Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering
We use the equivalence of positron scattering on atomic hydrogen, and positronium-proton scattering, to provide benchmark results for (anti)hydrogen formation in positronium (Ps) scattering on (anti)protons in a low-energy region. Using the two-center e +-H convergent close-coupling approach converg...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
American Physical Society
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/12596 |
| _version_ | 1848748117910880256 |
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| author | Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, Ravshanbek Bray, Igor |
| author_facet | Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, Ravshanbek Bray, Igor |
| author_sort | Kadyrov, Alisher |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We use the equivalence of positron scattering on atomic hydrogen, and positronium-proton scattering, to provide benchmark results for (anti)hydrogen formation in positronium (Ps) scattering on (anti)protons in a low-energy region. Using the two-center e +-H convergent close-coupling approach convergence to a few percent accuracy is demonstrated, in the only required zeroth partial wave, by substantial variation in the treatment of the two centers. A simple relation for the cross section at low Ps energies (k2) is given, with the 1/k behavior demonstrated to strictly hold only at threshold. |
| first_indexed | 2025-11-14T06:59:57Z |
| format | Journal Article |
| id | curtin-20.500.11937-12596 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:59:57Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-125962017-09-13T14:58:13Z Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, Ravshanbek Bray, Igor We use the equivalence of positron scattering on atomic hydrogen, and positronium-proton scattering, to provide benchmark results for (anti)hydrogen formation in positronium (Ps) scattering on (anti)protons in a low-energy region. Using the two-center e +-H convergent close-coupling approach convergence to a few percent accuracy is demonstrated, in the only required zeroth partial wave, by substantial variation in the treatment of the two centers. A simple relation for the cross section at low Ps energies (k2) is given, with the 1/k behavior demonstrated to strictly hold only at threshold. 2013 Journal Article http://hdl.handle.net/20.500.11937/12596 10.1103/PhysRevA.87.060701 American Physical Society restricted |
| spellingShingle | Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, Ravshanbek Bray, Igor Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering |
| title | Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering |
| title_full | Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering |
| title_fullStr | Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering |
| title_full_unstemmed | Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering |
| title_short | Benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering |
| title_sort | benchmark calculation of hydrogen (antihydrogen) formation at rest in positronium-proton (-antiproton) scattering |
| url | http://hdl.handle.net/20.500.11937/12596 |