| Автор | K F Dunn |
| Автор | B J Gilmore |
| Автор | F R Simpson |
| Автор | H B Gilbody |
| Дата выпуска | 1978-05-28 |
| dc.description | The formation of fast metastable helium atoms in two-electron capture by 200 keV <sup>4</sup>He<sup>2+</sup> ions in passage through hydrogen has been studied by means of the beam-attenuation technique. The results have been compared with metastable formation in one-electron capture by He<sup>+</sup> ions. The cross section for the process He<sup>2+</sup>+H<sub>2</sub> to He(2<sup>1</sup>S)+H<sup>+</sup>+H<sup>+</sup> which necessarily leads to 2<sup>1</sup>S rather than 2<sup>3</sup>S formation has been determined. The formation of He<sup>-</sup> ions in one-electron capture by 200 keV He(2<sup>1</sup>S) and (2<sup>3</sup>S) atoms has also been studied. The cross section for capture by 2<sup>1</sup>S atoms is shown to be approximately one half that for capture by 2<sup>3</sup>S atoms. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | He(2<sup>1</sup>S) and He<sup>-</sup> formation in fast charge-changing collisions and evidence for a long-lived doublet state of He<sup>-</sup> |
| Тип | paper |
| DOI | 10.1088/0022-3700/11/10/015 |
| Print ISSN | 0022-3700 |
| Журнал | Journal of Physics B: Atomic and Molecular Physics |
| Том | 11 |
| Первая страница | 1797 |
| Последняя страница | 1805 |
| Аффилиация | K F Dunn; Dept. of Pure & Appl. Phys., Queen's Univ. Belfast, UK |
| Аффилиация | B J Gilmore; Dept. of Pure & Appl. Phys., Queen's Univ. Belfast, UK |
| Аффилиация | F R Simpson; Dept. of Pure & Appl. Phys., Queen's Univ. Belfast, UK |
| Аффилиация | H B Gilbody; Dept. of Pure & Appl. Phys., Queen's Univ. Belfast, UK |
| Выпуск | 10 |
