Heating due to momentum transfer in low-energy positronium-antiproton scattering
We investigate the consequences of unexpectedly large elastic cross sections for the scattering of low-energy antiprotons from n≤3 positronium (Ps) on the experimental implementation of antihydrogen formation via Ps-antiproton collisions. The integrated elastic cross sections, obtained using the two...
| Main Authors: | , , |
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| Format: | Journal Article |
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American Physical Society
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/30811 |
| _version_ | 1848753196555567104 |
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| author | Charlton, M. Kadyrov, Alisher Bray, I. |
| author_facet | Charlton, M. Kadyrov, Alisher Bray, I. |
| author_sort | Charlton, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We investigate the consequences of unexpectedly large elastic cross sections for the scattering of low-energy antiprotons from n≤3 positronium (Ps) on the experimental implementation of antihydrogen formation via Ps-antiproton collisions. The integrated elastic cross sections, obtained using the two-center convergent close-coupling theory, can be up to three orders of magnitude greater than their counterparts for antihydrogen formation. The differential momentum transfer cross sections, which suppress the large cross sections at forward scattering angles, show remarkably rich behavior across all scattering angles. We discuss the implications of these findings for the heating, via momentum transfer, of clouds of trapped antiprotons that are typically used for the creation of antihydrogen. |
| first_indexed | 2025-11-14T08:20:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-30811 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:20:40Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-308112017-09-13T15:56:35Z Heating due to momentum transfer in low-energy positronium-antiproton scattering Charlton, M. Kadyrov, Alisher Bray, I. We investigate the consequences of unexpectedly large elastic cross sections for the scattering of low-energy antiprotons from n≤3 positronium (Ps) on the experimental implementation of antihydrogen formation via Ps-antiproton collisions. The integrated elastic cross sections, obtained using the two-center convergent close-coupling theory, can be up to three orders of magnitude greater than their counterparts for antihydrogen formation. The differential momentum transfer cross sections, which suppress the large cross sections at forward scattering angles, show remarkably rich behavior across all scattering angles. We discuss the implications of these findings for the heating, via momentum transfer, of clouds of trapped antiprotons that are typically used for the creation of antihydrogen. 2016 Journal Article http://hdl.handle.net/20.500.11937/30811 10.1103/PhysRevA.94.032701 American Physical Society restricted |
| spellingShingle | Charlton, M. Kadyrov, Alisher Bray, I. Heating due to momentum transfer in low-energy positronium-antiproton scattering |
| title | Heating due to momentum transfer in low-energy positronium-antiproton scattering |
| title_full | Heating due to momentum transfer in low-energy positronium-antiproton scattering |
| title_fullStr | Heating due to momentum transfer in low-energy positronium-antiproton scattering |
| title_full_unstemmed | Heating due to momentum transfer in low-energy positronium-antiproton scattering |
| title_short | Heating due to momentum transfer in low-energy positronium-antiproton scattering |
| title_sort | heating due to momentum transfer in low-energy positronium-antiproton scattering |
| url | http://hdl.handle.net/20.500.11937/30811 |