Fully converged time-dependent Hartree-Fock results for He sup 2+ -He: Correlation in inclusive charge transfer

Journal Article · Fri Mar 01 00:00:00 EST 1991 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.43.2294· OSTI ID:6045813

Schaudt, K J; Kwong, N H; Garcia, J D ^[1]

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1. Department of Physics, University of Arizona, Tucson, Arizona 85721 (US)

Previous time-dependent Hartree-Fock (TDHF) calculations of collisions between He ions and He atoms have been extended with improved accuracy. New features include using a Hermitian Coriolis term and installing classical quantum coupling, which allows completely self-consistent treatment of both the nuclear and electronic coordinates. Increased computer capabilities have allowed us to eliminate previous numerical limitations. We have calculated the single- and double-capture cross sections in the energy range of 1 to 250 keV. Comparison with experiments allows us to investigate the strengths and weaknesses of TDHF theory. Since correlation is best defined to be that which is not included in single-particle descriptions, we discuss converged results with regard to what they reveal about correlation.

• OSTI ID: 6045813
• Journal Information: Physical Review, A; (USA), Vol. 43:5; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALPHA PARTICLES
ION-ATOM COLLISIONS
HELIUM
ACCURACY
CHARGE EXCHANGE
CONVERGENCE
ELECTRON CAPTURE
HARTREE-FOCK METHOD
KEV RANGE
TWO-BODY PROBLEM
ATOM COLLISIONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
ION COLLISIONS
MANY-BODY PROBLEM
NONMETALS
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena