Convergent close coupling calculations for positron-magnesium scattering
While a two-centre convergent close-coupling approach to positron-magnesium scattering is developed, a single-centre method has been used to calculate total cross sections up to incident energies of 100 eV. The results agree very well with the measurements of Stein et al. [1] for positron energies a...
| Main Authors: | , , , , , |
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| Format: | Conference Paper |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/8205 |
| _version_ | 1848745586996543488 |
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| author | Savage, J. Bray, Igor Fursa, Dmitry Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, R. |
| author_facet | Savage, J. Bray, Igor Fursa, Dmitry Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, R. |
| author_sort | Savage, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | While a two-centre convergent close-coupling approach to positron-magnesium scattering is developed, a single-centre method has been used to calculate total cross sections up to incident energies of 100 eV. The results agree very well with the measurements of Stein et al. [1] for positron energies above the ionisation threshold (7.6 eV). Similar accuracy is expected for energies below the positronium formation threshold (0.8 eV) where presently there are no experimental data to compare to. In this energy region we find a large p-wave resonance at 0.17 eV. Similar resonance behaviour was found in calculations by Mitroy and Bromley [2] at an energy of 0.1 eV. |
| first_indexed | 2025-11-14T06:19:43Z |
| format | Conference Paper |
| id | curtin-20.500.11937-8205 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:19:43Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-82052017-09-13T14:37:52Z Convergent close coupling calculations for positron-magnesium scattering Savage, J. Bray, Igor Fursa, Dmitry Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, R. While a two-centre convergent close-coupling approach to positron-magnesium scattering is developed, a single-centre method has been used to calculate total cross sections up to incident energies of 100 eV. The results agree very well with the measurements of Stein et al. [1] for positron energies above the ionisation threshold (7.6 eV). Similar accuracy is expected for energies below the positronium formation threshold (0.8 eV) where presently there are no experimental data to compare to. In this energy region we find a large p-wave resonance at 0.17 eV. Similar resonance behaviour was found in calculations by Mitroy and Bromley [2] at an energy of 0.1 eV. 2012 Conference Paper http://hdl.handle.net/20.500.11937/8205 10.1088/1742-6596/388/7/072007 unknown |
| spellingShingle | Savage, J. Bray, Igor Fursa, Dmitry Kadyrov, Alisher Lugovskoy, Andrey Utamuratov, R. Convergent close coupling calculations for positron-magnesium scattering |
| title | Convergent close coupling calculations for positron-magnesium scattering |
| title_full | Convergent close coupling calculations for positron-magnesium scattering |
| title_fullStr | Convergent close coupling calculations for positron-magnesium scattering |
| title_full_unstemmed | Convergent close coupling calculations for positron-magnesium scattering |
| title_short | Convergent close coupling calculations for positron-magnesium scattering |
| title_sort | convergent close coupling calculations for positron-magnesium scattering |
| url | http://hdl.handle.net/20.500.11937/8205 |