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Isotope effects in the metastable decay of Ne2 +

  • Structure and Thermodynamics of Free Clusters
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Abstract.

Neon dimer ions undergo spontaneous dissociation (metastable decay) several microseconds after formation by electron impact ionization of neon clusters. In this contribution we compare the kinetic energy release distribution (KERD) of the previously reported isotopomer 20Ne2 + with that of 22Ne2 +. The heavy isotopomer shows the same two components in the KERD as the lighter ones. However, the high-energy component that is due to electronic pre-dissociation is reduced in intensity. The decrease is attributed to a reduced predissociation rate from the II(1/2u) state into I(3/2u).

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Authors and Affiliations

  1. Institut für Ionenphysik und Angewandte Physik, Leopold Franzens Universität, Technikerstr. 25, 6020, Innsbruck, Austria

    K. Głuch, J. Fedor, R. Parajuli, O. Echt, S. Matt-Leubner, P. Scheier & T. D. Märk

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  1. K. Głuch
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  2. J. Fedor
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  3. R. Parajuli
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  4. O. Echt
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  5. S. Matt-Leubner
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  6. P. Scheier
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  7. T. D. Märk
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Corresponding author

Correspondence to O. Echt.

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Głuch, K., Fedor, J., Parajuli, R. et al. Isotope effects in the metastable decay of Ne2 + . Eur. Phys. J. D 43, 77–80 (2007). https://doi.org/10.1140/epjd/e2007-00105-x

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  • DOI: https://doi.org/10.1140/epjd/e2007-00105-x

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