Autoionization dynamics of excited collision systems: Angular dependence of the electron and ion energy spectra for He[sup *](2[sup 3][ital S])+H

Journal Article · Mon Dec 14 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.3467· OSTI ID:7156910

Merz, A; Ruf, M; Hotop, H ^[1]

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1. Fachbereich Physik, Universitaet Kaiserslautern, W-6750 Kaiserslautern (Germany)

We present the first angle-dependent energy spectra for the basic autoionization process He[sup *](2[sup 3][ital S])+H(1[sup 2][ital S]) leading to Penning ionization ([r arrow]He+H[sup +]+[ital e][sup [minus]]; PI) and associative ionization [[r arrow]HeH[sup +]([ital v][sup +],[ital J][sup +])+[ital e][sup [minus]]; AI]. Our results include electron energy spectra for both reaction channels and the H[sup +]-ion energy spectra for PI. The variation of the electron spectra with angle demonstrates the presence of substantial contributions from non-[ital s]-type electron partial waves, with the angle-dependent electron signals due to AI yielding clear information on the internal electron angular distribution of the autoionizing quasimolecule.

• OSTI ID: 7156910
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:24; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
AUTOIONIZATION
COLLISIONS
COMPLEXES
DATA
DISTRIBUTION
ELECTRON SPECTRA
ELEMENTS
ENERGY LEVELS
ENERGY SPECTRA
EXCITED STATES
EXPERIMENTAL DATA
FLUIDS
GASES
HELIUM
HYDROGEN
INFORMATION
ION SPECTROSCOPY
IONIZATION
NONMETALS
NUMERICAL DATA
PENNING EFFECT
RARE GASES
SPACE DEPENDENCE
SPECTRA
SPECTROSCOPY