Classical charge-transfer and ionization channels for ion collisions with circular Rydberg atoms

Journal Article · Tue Feb 28 23:00:00 EST 1995 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.51.2075· OSTI ID:6584629

Homan, D M; Cavagnero, M J; Harmin, D A ^[1]

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1. Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States)

Explorations of the classical phase space for ion collisions with circular Rydberg atoms are presented. Intermediate-energy capture and ionization processes are studied through the numerical integration of Newton's equations of motion and through the graphical depiction of the outcomes of large numbers of trajectories. Maps which correlate initial conditions with final outcomes are used to identify zones of parameter space leading to Thomas capture, direct capture, binary-encounter ionization, saddle-point ionization, and ionization by [ital S] superpromotion (E. A. Solov'ev, Zh. Eksp. Teor. Fiz. 81, 1681 (1981) [Sov. Phys. JETP 54, 893 (1981)]). Charge-transfer channels in which the electron passes once or three times through the midplane between the nuclei are shown to occur in separate zones of parameter space over the entire range of projectile speeds above the mean velocity of the target electron.

• OSTI ID: 6584629
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 51:3; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CAPTURE
CIRCULAR CONFIGURATION
COLLISIONS
CONFIGURATION
DYNAMICS
ELECTRON CAPTURE
ELECTRONIC STRUCTURE
ENERGY LEVELS
EXCITED STATES
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
MATHEMATICAL SPACE
MECHANICS
PHASE SPACE
RYDBERG STATES
SPACE
TRAJECTORIES