CALCULATION OF Z(EFF) FOR LOW-ENERGY POSITRON SCATTERING BY THE HYDROGEN MOLECULAR ION

Authors
ARMOUR EAG CARR JM
Citation
Eag. Armour et Jm. Carr, CALCULATION OF Z(EFF) FOR LOW-ENERGY POSITRON SCATTERING BY THE HYDROGEN MOLECULAR ION, Canadian journal of physics, 74(7-8), 1996, pp. 501-504
Citations number
26
Categorie Soggetti
Physics
Journal title
Canadian journal of physics → ACNP
ISSN journal
00084204
Volume
74
Issue
7-8
Year of publication
1996
Pages
501 - 504
Database
ISI
SICI code
0008-4204(1996)74:7-8<501:COZFLP>2.0.ZU;2-Z
Abstract
The Kohn variational method has recently been applied to the calculati on of the addition to the Coulomb phase shift, in positron scattering, by the hydrogen molecular ion below the positronium-formation thresho ld at 9.45 eV. in this paper the wave function obtained for the lowest spheroidal partial wave of Sigma(g)(+) symmetry is used to calculate the contribution to Z(eff) from this symmetry. The results are signifi cantly larger than those obtained using the Coulomb-Born approximation .