| Автор | H A Slim |
| Автор | A T Stelbovics |
| Дата выпуска | 1988-05-14 |
| dc.description | Analytic and numerical studies of prescriptions for T-matrix averaging are presented in the context of a coupled-channel model with separable potentials. The inelastic channels are folded into an optical potential and the corresponding branch cuts are discretised by expanding in R-matrix and in L<sup>2</sup> bases. This singular optical potential leads to irregular structure (pseudoresonances) in the T-matrix element for elastic scattering, whose explicit form is known due to the analytic solubility of the model. Two procedures for extracting the physical T matrix are discussed: averaging of the irregular T matrix over an infinitesimal interval and the frequently used method of a least-squares fit for a finite interval. Analytic proofs of the convergence of these averages to the exact T matrix are given and the convergence rate is investigated. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Averaging of T matrices calculated with a discretised optical potential |
| Тип | paper |
| DOI | 10.1088/0953-4075/21/9/012 |
| Electronic ISSN | 1361-6455 |
| Print ISSN | 0953-4075 |
| Журнал | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Том | 21 |
| Первая страница | 1519 |
| Последняя страница | 1536 |
| Аффилиация | H A Slim; Sch. of Math. & Phys. Sci., Murdoch Univ., Perth, WA, Australia |
| Аффилиация | A T Stelbovics; Sch. of Math. & Phys. Sci., Murdoch Univ., Perth, WA, Australia |
| Выпуск | 9 |
