Sequences of threshold resonances in - H scattering
- 28 May 1996
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 29 (10) , 2127-2133
- https://doi.org/10.1088/0953-4075/29/10/020
Abstract
Sequences of S, P and D resonances in positron - hydrogen scattering were shown to still exist below the n = 2 H excitation threshold in a coupled-state calculation employing a large coupling scheme. The positions of the resonances were found to shift slightly away from the threshold and their widths to broaden slightly, compared with those previously determined with smaller schemes. The energy ratios and width ratios of the successive resonances of a sequence still reasonably satisfy the predicted `scaling law'.Keywords
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