Theory of Rapidly Oscillating Electron Angular Distributions in Slow Ion-Atom Collisions

Journal Article · Sun Mar 01 04:00:00 EST 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.2298· OSTI ID:597209

Macek, J H; Ovchinnikov, S Y ^[1]

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1. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1501 (United States)

A general expression for the ionization amplitude in slow ion-atom collisions is derived. The expression is inverted to obtain adiabatic electronic wave functions at complex values of the internuclear distance. It is shown that beating between {sigma} and {pi} components of electronic wave functions gives rise to rapid oscillations of electron angular distributions with ion velocity v . These rapid oscillations measure the real part of that eigenvalue whose imaginary part gives the well-known Wannier exponent. {copyright} {ital 1998} {ital The American Physical Society}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 597209
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 11 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AMPLITUDES
ANGULAR DISTRIBUTION
ELECTRON SPECTRA
ELECTRONS
ENERGY LEVELS
HARMONIC OSCILLATORS
ION-ATOM COLLISIONS
IONIZATION
OSCILLATIONS
VELOCITY
WAVE FUNCTIONS