Convergent Close-Coupling Approach to Electron-Atom Collisions
The convergent close-coupling (CCC) method was developed in order to resolve the long-standing discrepancy between two consistent experiments and all available theories for 2p excitation of atomic hydrogen [1] . The method was unable to resolve this discrepancy, but subsequent experiments [2,3] foun...
| Main Authors: | , |
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| Format: | Book Chapter |
| Published: |
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/51521 |
| _version_ | 1848758719434719232 |
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| author | Bray, Igor Stelbovics, Andris |
| author_facet | Bray, Igor Stelbovics, Andris |
| author_sort | Bray, Igor |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The convergent close-coupling (CCC) method was developed in order to resolve the long-standing discrepancy between two consistent experiments and all available theories for 2p excitation of atomic hydrogen [1] . The method was unable to resolve this discrepancy, but subsequent experiments [2,3] found much more in favor of theory than the previous experiments. There have been a number of reviews of the applications of the CCC theory with the most recent one being by Bray et al. [4] . The method has been extended to ionization [5], resulting in some controversy [6,7] that required further explanation [8,9]. Our own confidence in the ability of the CCC method to reproduce electron— hydrogen fully differential ionization cross sections was shaken by the less than satisfactory agreement with experiment [10] . However, this turned out to be primarily due to insufficient computational resources available at the time [11]. Consequently, we are now confident that the CCC method is able to solve the e—H, γ—He, and e—He (within the frozen-core model) collision systems at all energies with one or two outgoing electrons. We shall attempt to explain here the underlying foundations as clearly as possible. The example of the S-wave model will be used to demonstrate the method. A published program is available that shows the workings of the method discussed here [12] . We will finish by concentrating on the application of the method to fully differential ionization processes. |
| first_indexed | 2025-11-14T09:48:27Z |
| format | Book Chapter |
| id | curtin-20.500.11937-51521 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:48:27Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-515212018-03-29T09:08:38Z Convergent Close-Coupling Approach to Electron-Atom Collisions Bray, Igor Stelbovics, Andris The convergent close-coupling (CCC) method was developed in order to resolve the long-standing discrepancy between two consistent experiments and all available theories for 2p excitation of atomic hydrogen [1] . The method was unable to resolve this discrepancy, but subsequent experiments [2,3] found much more in favor of theory than the previous experiments. There have been a number of reviews of the applications of the CCC theory with the most recent one being by Bray et al. [4] . The method has been extended to ionization [5], resulting in some controversy [6,7] that required further explanation [8,9]. Our own confidence in the ability of the CCC method to reproduce electron— hydrogen fully differential ionization cross sections was shaken by the less than satisfactory agreement with experiment [10] . However, this turned out to be primarily due to insufficient computational resources available at the time [11]. Consequently, we are now confident that the CCC method is able to solve the e—H, γ—He, and e—He (within the frozen-core model) collision systems at all energies with one or two outgoing electrons. We shall attempt to explain here the underlying foundations as clearly as possible. The example of the S-wave model will be used to demonstrate the method. A published program is available that shows the workings of the method discussed here [12] . We will finish by concentrating on the application of the method to fully differential ionization processes. 2013 Book Chapter http://hdl.handle.net/20.500.11937/51521 10.1007/978-3-662-08492-2_7 restricted |
| spellingShingle | Bray, Igor Stelbovics, Andris Convergent Close-Coupling Approach to Electron-Atom Collisions |
| title | Convergent Close-Coupling Approach to Electron-Atom Collisions |
| title_full | Convergent Close-Coupling Approach to Electron-Atom Collisions |
| title_fullStr | Convergent Close-Coupling Approach to Electron-Atom Collisions |
| title_full_unstemmed | Convergent Close-Coupling Approach to Electron-Atom Collisions |
| title_short | Convergent Close-Coupling Approach to Electron-Atom Collisions |
| title_sort | convergent close-coupling approach to electron-atom collisions |
| url | http://hdl.handle.net/20.500.11937/51521 |