Double electron transfer in high energy ion-atom collisions
- Universite Bordeaux, Talence (France)
Recent theoretical investigations for two-electron capture by swift ions (H{sup +}, He{sup 2+}, Li{sup 3+} and B{sup 5+}) in helium atoms indicate that Independent Electron Approximations (IEA) might not be adapted to this process. IEA discard dynamical effects of dielectronic interactions. A new Four Body (4B) perturbation theory (two electrons and two nuclei) developed in the CDW framework, allows to introduce them. It is called 4B-CDW. Presently, 4B-CDW predictions have been made for the capture into the ground state only. For proton impacts, the production of H{minus}, which has no excited state, is well predicted by 4B-CDW. In other cases, this ground state contribution is too small to fit experimental data. However, it is expected not to be the dominant contribution in electron capture by multicharged ions. Therefore, contributions from excited states should be taken into account. The situation will be reviewed at the conference.
- OSTI ID:
- 199540
- Report Number(s):
- CONF-941129-; TRN: 95:005652-0028
- Resource Relation:
- Conference: 13. international conference on the application of accelerators in research and industry, Denton, TX (United States), 7-10 Nov 1994; Other Information: PBD: 1994; Related Information: Is Part Of Thirteenth international conference on the application of accelerators in research and industry; Duggan, J.L.; Morgan, I.L. [eds.]; PB: 201 p.
- Country of Publication:
- United States
- Language:
- English
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