Plane-wave and common-translation-factor treatments of He sup 2+ +H collisions at high velocities

Journal Article · Sun Nov 01 00:00:00 EST 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.46.5617· OSTI ID:7198524

Errea, L F ^[1]; Harel, C; Jouin, H ^[2]; Maidagan, J M; Mendez, L ^[1]; Pons, B ^[2]; Riera, A ^[1]

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1. Departamento de Quimica, C-XIV, Universidad Autonoma de Madrid, Canto Blanco, 28049 Madrid (Spain)
2. Laboratoire des Collisions Atomiques, Universite Bordeaux I, 351 Cours de la Liberation, 33405 Talence (France)

We complement previous work that showed that the molecular approach, modified with plane-wave translation factors, is able to reproduce the fall of charge-exchange cross sections in He{sup 2+}+H collisions, by presenting the molecular data, and studying the corresponding mechanism. We test the accuracy of simplifications of the method that have been employed in the literature, and that lead to very simple calculations. We show that the common-translation-factor method is also successful at high nuclear velocities, provided that sufficiently excited states are included in the basis; moreover, it yields a simple picture of the mechanism and a description of ionization processes at high velocities.

• OSTI ID: 7198524
• Journal Information: Physical Review A. General Physics; (United States), Vol. 46:9; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALPHA PARTICLES
ION-ATOM COLLISIONS
HYDROGEN
CALCULATION METHODS
CHARGE EXCHANGE
ENERGY DEPENDENCE
EXPERIMENTAL DATA
VALIDATION
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
DATA
ELEMENTS
INFORMATION
ION COLLISIONS
NONMETALS
NUMERICAL DATA
TESTING
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)