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Angle-dependent electron energy spectra resulting from autoionizing Ne⋆ (3s 3 P 2) +H(12 S) collisions

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

Experimental angle-dependent electron energy spectra for the autoionization complex Ne*(3s 3 P 2)+H(12 S), leading to Penning and associative ionization, are reported. The data, measured at thermal collision energies (Ē rel∼51 meV), clearly show an angular variation of the spectral shape, indicating that electrons with angular momentuml>0 participate in the autoionization process. The corresponding non-isotropic electron emission leads to a correlation between the impact parameter-dependent heavy-particle dynamics and the observed electron energy spectrum at a certain detection angle. The experimental results are qualitatively discussed in connection with previous work on the system He*(23 S)+H(12 S). Furthermore, we present quantum mechanical model-calculations for the electron energy spectrum on the basis of available potential data.

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Authors and Affiliations

  1. Fachbereich Physik, Universität Kaiserslautern, D-67653, Kaiserslautern, Germany

    A. Merz, M. -W. Ruf & H. Hotop

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  1. A. Merz
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  2. M. -W. Ruf
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  3. H. Hotop
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Merz, A., Ruf, M.W. & Hotop, H. Angle-dependent electron energy spectra resulting from autoionizing Ne⋆ (3s 3 P 2) +H(12 S) collisions. Z Phys D - Atoms, Molecules and Clusters 32, 197–203 (1994). https://doi.org/10.1007/BF01437148

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  • DOI: https://doi.org/10.1007/BF01437148

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