Experimental determination of the scattering length for positron scattering from krypton
We report the first experimentally supported determination of the scattering length for positron scattering from krypton. Our result of -10.3 ± 1.5 a.u. compares favourably with that from a convergent close coupling calculation performed as a part of this investigation (-9.5 a.u.), and also with an...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Springer
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/37740 |
| _version_ | 1848755131311456256 |
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| author | Zecca, A. Chiari, L. Trainotti, E. Fursa, Dmitry Bray, Igor Brunger, M. |
| author_facet | Zecca, A. Chiari, L. Trainotti, E. Fursa, Dmitry Bray, Igor Brunger, M. |
| author_sort | Zecca, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We report the first experimentally supported determination of the scattering length for positron scattering from krypton. Our result of -10.3 ± 1.5 a.u. compares favourably with that from a convergent close coupling calculation performed as a part of this investigation (-9.5 a.u.), and also with an earlier many body theory calculation of -10.1 a.u. from Gribakin and Ludlow [Phys. Rev. A 70, 032720 (2004)] and a polarized-orbital result of -10.4 a.u. from McEachran et al. [J. Phys. B 13, 1281 (1980)]. The present experimental scattering length supports the existence of a low-lying positron-krypton virtual state (Surko et al. [J. Phys. B 38, R57 (2005)]) at an energy ε = 0.13 eV. |
| first_indexed | 2025-11-14T08:51:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-37740 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:51:26Z |
| publishDate | 2011 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-377402017-09-13T15:58:42Z Experimental determination of the scattering length for positron scattering from krypton Zecca, A. Chiari, L. Trainotti, E. Fursa, Dmitry Bray, Igor Brunger, M. We report the first experimentally supported determination of the scattering length for positron scattering from krypton. Our result of -10.3 ± 1.5 a.u. compares favourably with that from a convergent close coupling calculation performed as a part of this investigation (-9.5 a.u.), and also with an earlier many body theory calculation of -10.1 a.u. from Gribakin and Ludlow [Phys. Rev. A 70, 032720 (2004)] and a polarized-orbital result of -10.4 a.u. from McEachran et al. [J. Phys. B 13, 1281 (1980)]. The present experimental scattering length supports the existence of a low-lying positron-krypton virtual state (Surko et al. [J. Phys. B 38, R57 (2005)]) at an energy ε = 0.13 eV. 2011 Journal Article http://hdl.handle.net/20.500.11937/37740 10.1140/epjd/e2011-20333-7 Springer restricted |
| spellingShingle | Zecca, A. Chiari, L. Trainotti, E. Fursa, Dmitry Bray, Igor Brunger, M. Experimental determination of the scattering length for positron scattering from krypton |
| title | Experimental determination of the scattering length for positron scattering from krypton |
| title_full | Experimental determination of the scattering length for positron scattering from krypton |
| title_fullStr | Experimental determination of the scattering length for positron scattering from krypton |
| title_full_unstemmed | Experimental determination of the scattering length for positron scattering from krypton |
| title_short | Experimental determination of the scattering length for positron scattering from krypton |
| title_sort | experimental determination of the scattering length for positron scattering from krypton |
| url | http://hdl.handle.net/20.500.11937/37740 |