Solving close-coupling equations in momentum space without singularities for charged targets
The analytical treatment of the Green's function in the convergent close-coupling method (Bray et al., 2016) has been extended to charged targets. Furthermore, we show that this approach allows for calculation of cross sections at zero channel energy. For neutral targets this means the electron...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2017
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| Online Access: | http://manuscript.elsevier.com/S0010465516303149/pdf/S0010465516303149.pdf http://hdl.handle.net/20.500.11937/8269 |
| _version_ | 1848745606935216128 |
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| author | Bray, A. Abdurakhmanov, I. Kadyrov, A. Fursa, D. Bray, Igor |
| author_facet | Bray, A. Abdurakhmanov, I. Kadyrov, A. Fursa, D. Bray, Igor |
| author_sort | Bray, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The analytical treatment of the Green's function in the convergent close-coupling method (Bray et al., 2016) has been extended to charged targets. Furthermore, we show that this approach allows for calculation of cross sections at zero channel energy. For neutral targets this means the electron scattering length may be obtained from a single calculation with zero incident energy. For charged targets the non-zero excitation cross sections at thresholds can also be calculated by simply setting the incident energy to the exact threshold value. These features are demonstrated by considering electron scattering on H and He+. |
| first_indexed | 2025-11-14T06:20:02Z |
| format | Journal Article |
| id | curtin-20.500.11937-8269 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:20:02Z |
| publishDate | 2017 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-82692023-04-26T05:11:52Z Solving close-coupling equations in momentum space without singularities for charged targets Bray, A. Abdurakhmanov, I. Kadyrov, A. Fursa, D. Bray, Igor The analytical treatment of the Green's function in the convergent close-coupling method (Bray et al., 2016) has been extended to charged targets. Furthermore, we show that this approach allows for calculation of cross sections at zero channel energy. For neutral targets this means the electron scattering length may be obtained from a single calculation with zero incident energy. For charged targets the non-zero excitation cross sections at thresholds can also be calculated by simply setting the incident energy to the exact threshold value. These features are demonstrated by considering electron scattering on H and He+. 2017 Journal Article http://hdl.handle.net/20.500.11937/8269 10.1016/j.cpc.2016.10.008 http://manuscript.elsevier.com/S0010465516303149/pdf/S0010465516303149.pdf http://purl.org/au-research/grants/arc/DP160102106 Elsevier BV unknown |
| spellingShingle | Bray, A. Abdurakhmanov, I. Kadyrov, A. Fursa, D. Bray, Igor Solving close-coupling equations in momentum space without singularities for charged targets |
| title | Solving close-coupling equations in momentum space without singularities for charged targets |
| title_full | Solving close-coupling equations in momentum space without singularities for charged targets |
| title_fullStr | Solving close-coupling equations in momentum space without singularities for charged targets |
| title_full_unstemmed | Solving close-coupling equations in momentum space without singularities for charged targets |
| title_short | Solving close-coupling equations in momentum space without singularities for charged targets |
| title_sort | solving close-coupling equations in momentum space without singularities for charged targets |
| url | http://manuscript.elsevier.com/S0010465516303149/pdf/S0010465516303149.pdf http://manuscript.elsevier.com/S0010465516303149/pdf/S0010465516303149.pdf http://hdl.handle.net/20.500.11937/8269 |