Partial cross sections and correlation effects in B sup 3+ -He collisions

Journal Article · Wed Jan 01 04:00:00 EST 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.184· OSTI ID:5105155

Hansen, J P ^[1]; Dubois, A ^[2]; Nielsen, S E ^[2]

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1. Institute of Physics, University of Bergen, Allegaten 55, N-5007 Bergen (Norway)
2. Department of Chemistry, H. C. Orsted Institute, University of Copenhagen, DK-2100 Copenhagen (Denmark)

Total and partial cross sections are calculated for single-electron capture in B{sup 3+-}He collisions for projectile energies from 1.0 to 500 keV. Results for a one-electron model and a full two-electron treatment of the electronic wave function are compared. Both procedures compare well with experimental data for total cross sections. However, the two-electron model, which incorporates correlation and relaxation effects, compares most favorably, particularly when partial cross sections are considered. The total single-capture cross sections for higher velocities ({ital v}{approx}2--8 a.u.) decay in average according to a {ital v}{sup {minus}7.2} behavior, close to the {ital v}{sup {minus}7} behavior expected from the Bohr-Lindhard model. The discussion focuses on the role of correlation effects during the collision.

• OSTI ID: 5105155
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:1; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BORON IONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELEMENTS
FLUIDS
FUNCTIONS
GASES
HELIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
MATHEMATICAL MODELS
MATHEMATICS
NONMETALS
NUMERICAL ANALYSIS
PARTICLE MODELS
RARE GASES
SINGLE-PARTICLE MODEL
WAVE FUNCTIONS