| Issue |
Europhys. Lett.
Volume 60, Number 1, October 2002
|
|
|---|---|---|
| Page(s) | 46 - 52 | |
| Section | Atomic and molecular physics | |
| DOI | https://doi.org/10.1209/epl/i2002-00316-7 | |
| 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: tpasg@mahendra.iacs.res.in
Received:
2
April
2002
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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