| Автор | E A G Armour |
| Автор | D J Baker |
| Автор | M Plummer |
| Дата выпуска | 1990-09-14 |
| dc.description | The authors present calculations of e<sup>+</sup>-H<sub>2</sub> scattering below the positronium formation threshold at 8.63 eV for the Sigma <sub>g</sub><sup>+</sup>, Sigma <sub>u</sub><sup>+</sup>, Pi <sub>u</sub> and Pi <sub>g</sub> symmetries using the generalized Kohn method. Mixing of the two lowest partial waves is allowed for in the Sigma <sub>g</sub><sup>+</sup>, Sigma <sub>u</sub><sup>+</sup> and Pi <sub>u</sub> symmetries, using a two channel K-matrix. Comparisons with Kohn calculations of the lowest partial waves of these symmetries show that mixing of partial waves has a relatively small effect on the contributions to the total scattering cross section at the energies considered. The Pi <sub>g</sub> calculation includes only the lowest partial wave. As well as separable short-range correlation functions, the trial functions used in these calculations include Hylleraas-type functions containing the positron-electron distance as a linear factor and functions appropriate for taking into account long-range polarization of the hydrogen molecule. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The theoretical treatment of low-energy e<sup>+</sup>-H<sub>2</sub> scattering using the Kohn variational method |
| Тип | paper |
| DOI | 10.1088/0953-4075/23/17/018 |
| Electronic ISSN | 1361-6455 |
| Print ISSN | 0953-4075 |
| Журнал | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Том | 23 |
| Первая страница | 3057 |
| Последняя страница | 3074 |
| Аффилиация | E A G Armour; Dept. of Math., Nottingham Univ., UK |
| Аффилиация | D J Baker; Dept. of Math., Nottingham Univ., UK |
| Аффилиация | M Plummer; Dept. of Math., Nottingham Univ., UK |
| Выпуск | 17 |
