Volume 60, Number 1, October 2002
|Page(s)||46 - 52|
|Section||Atomic and molecular physics|
|Published online||01 September 2002|
Feshbach resonances in electron-positronium continuum and the close-coupling model
Department of Theoretical Physics, Indian Association
for the Cultivation of Science
Jadavpur, Kolkata 700 032, India
Corresponding author: email@example.com
Accepted: 2 July 2002
A three-state and a six-state close-coupling approximation have been employed to investigate the - scattering below the first excitation threshold of the atom. Present s- and p-wave phase shifts and total cross-sections are compared with the corresponding predictions of Ward et al. (J. Phys. B, 20 (1987) 127). All the Feshbach resonances below the n=2 threshold, including and resonances as predicted by Ho (Phys. Lett. A, 120 (1984) 348 and Phys. Rev. A, 60 (1999) 2834), have been obtained.
PACS: 36.10.Dr – Positronium, muonium, muonic atoms and molecules / 34.50.-s – Scattering of atoms and molecules / 34.85.+x – Positron scattering
© EDP Sciences, 2002
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