| Автор | K T Taylor |
| Автор | C J Zeippen |
| Автор | M Le Dourneuf |
| Дата выпуска | 1984-03-28 |
| dc.description | Accurate results for the photoionisation of the Si<sup>+</sup> (3s<sup>2</sup>3p <sup>2</sup>P<sup>0</sup>) ground state are reported for the photon energy region between the first two ionisation thresholds, Si<sup>2+</sup> (3s<sup>2</sup> <sup>1</sup>S<sup>e</sup>, 3s3p <sup>3</sup>P<sup>0</sup>), at 750 and 540 AA. The cross section is dominated by the autoionised <sup>3</sup>P<sup>0</sup> np, nf (n>or=4) Rydberg series, whose shapes and oscillator strengths are drastically perturbed by the <sup>1</sup>P<sup>0</sup> 4p <sup>2</sup>S<sup>e</sup>, <sup>2</sup>D<sup>e</sup> interlopers. These results are the first outcome of an elaborate calculation, based on a consistent LS multichannel description of the initial bound state and the final continua. The ejection of one valence electron is allowed for, together with flexible relaxation within the remaining valence shell, and possible monoexcitation into a near-spectroscopic orbital (3d, 4s, 4p). This extensive calculation (12 ionic states, up to 22 channels) is the first application of a new numerical approach combining the advantages of the R-matrix and the multichannel quantum defect (MQDT) theories. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The photoionisation of the Si<sup>+</sup> (<sup>2</sup>P<sup>0</sup>) ground state: a combined application of the R-matrix and quantum defect theories |
| Тип | lett |
| DOI | 10.1088/0022-3700/17/6/002 |
| Print ISSN | 0022-3700 |
| Журнал | Journal of Physics B: Atomic and Molecular Physics |
| Том | 17 |
| Первая страница | L157 |
| Последняя страница | L163 |
| Аффилиация | K T Taylor; Daresbury Lab., SERC, Daresbury, Warrington, UK |
| Аффилиация | C J Zeippen; Daresbury Lab., SERC, Daresbury, Warrington, UK |
| Аффилиация | M Le Dourneuf; Daresbury Lab., SERC, Daresbury, Warrington, UK |
| Выпуск | 6 |
