Convergent close-coupling calculations of helium single ionization by antiproton impact
We apply the fully quantum-mechanical convergent close-coupling method to the calculation of antiproton scattering on the ground state of helium. The helium target is treated as a three-body Coulomb system using frozen-core and multiconfiguration approximations. The electron-electron correlation of...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/5448 |
| _version_ | 1848744799808520192 |
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| author | Abdurakhmanov, Ilkhom Kadyrov, Alisher Fursa, Dmitry Bray, Igor Stelbovics, Andris |
| author_facet | Abdurakhmanov, Ilkhom Kadyrov, Alisher Fursa, Dmitry Bray, Igor Stelbovics, Andris |
| author_sort | Abdurakhmanov, Ilkhom |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We apply the fully quantum-mechanical convergent close-coupling method to the calculation of antiproton scattering on the ground state of helium. The helium target is treated as a three-body Coulomb system using frozen-core and multiconfiguration approximations. The electron-electron correlation of the target is fully treated in both cases. Though both calculations yield generally good agreement with experiment for the total ionization cross sections, the multiconfiguration results are substantially higher at the lower energies than the frozen-core ones. Calculated longitudinal ejected electron and recoil-ion momentum distributions for the single ionization of helium are in good agreement with the experiment. |
| first_indexed | 2025-11-14T06:07:13Z |
| format | Journal Article |
| id | curtin-20.500.11937-5448 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:07:13Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-54482017-09-13T16:02:57Z Convergent close-coupling calculations of helium single ionization by antiproton impact Abdurakhmanov, Ilkhom Kadyrov, Alisher Fursa, Dmitry Bray, Igor Stelbovics, Andris We apply the fully quantum-mechanical convergent close-coupling method to the calculation of antiproton scattering on the ground state of helium. The helium target is treated as a three-body Coulomb system using frozen-core and multiconfiguration approximations. The electron-electron correlation of the target is fully treated in both cases. Though both calculations yield generally good agreement with experiment for the total ionization cross sections, the multiconfiguration results are substantially higher at the lower energies than the frozen-core ones. Calculated longitudinal ejected electron and recoil-ion momentum distributions for the single ionization of helium are in good agreement with the experiment. 2011 Journal Article http://hdl.handle.net/20.500.11937/5448 10.1103/PhysRevA.84.062708 American Physical Society restricted |
| spellingShingle | Abdurakhmanov, Ilkhom Kadyrov, Alisher Fursa, Dmitry Bray, Igor Stelbovics, Andris Convergent close-coupling calculations of helium single ionization by antiproton impact |
| title | Convergent close-coupling calculations of helium single ionization by antiproton impact |
| title_full | Convergent close-coupling calculations of helium single ionization by antiproton impact |
| title_fullStr | Convergent close-coupling calculations of helium single ionization by antiproton impact |
| title_full_unstemmed | Convergent close-coupling calculations of helium single ionization by antiproton impact |
| title_short | Convergent close-coupling calculations of helium single ionization by antiproton impact |
| title_sort | convergent close-coupling calculations of helium single ionization by antiproton impact |
| url | http://hdl.handle.net/20.500.11937/5448 |