Continuum-distorted-wave{endash}final-state approximation in positron-hydrogenic atom (ion) collisions with positronium formation

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.54.4923· OSTI ID:397542

Fojon, O A; Rivarola, R D ^[1]; Gayet, R ^[2]; Hanssen, J; Hervieux, P A ^[3]

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1. Instituto de Fisica Rosario, CONICET-UNR y Escuela de Ciencias Exactas y Naturales, Facultad de Ciencias Exactas, Ingenieria y Agrimensura, Avenida Pellegrini 250, 2000 Rosario (Argentina)
2. Centre de Physique Theorique et de Modelisations, CNRS Equipe de Recherche No. 1537, Universite de Bordeaux I, Talence (France)
3. Laboratoire de Physique Moleculaire et des Collisions, Institut de Physique Rue Arago, Technopole 2000, Metz (France)

We study theoretically the formation of positronium atoms through electron capture in collisions of positrons impacting on hydrogenlike targets such as He{sup +}, Li{sup 2+}, and Be{sup 3+}. We obtain the scattering amplitude of the charge-exchange process by using a distorted-wave model derived from the first order of a Dodd and Greider{close_quote}s expansion. We compute differential and total cross sections by using a partial-wave technique. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 397542
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 54; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BERYLLIUM IONS
CHARGE-EXCHANGE INTERACTIONS
CROSS SECTIONS
ELECTRON CAPTURE
HELIUM IONS
LITHIUM IONS
MULTICHARGED IONS
PARTIAL WAVES
POSITRON-ATOM COLLISIONS
POSITRONIUM
SCATTERING AMPLITUDES