Title

Isotope effects in the metastable decay of Ne-2(+)

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 Ne-20(2)+ with that of Ne-22(2)+. 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).

Department

Physics

Publication Date

7-1-2007

Journal Title

European Physical Journal D

Publisher

SPRINGER

Digital Object Identifier (DOI)

10.1140/epjd/e2007-00105-x

Document Type

Article

Rights

© EDP Sciences, Societ`a Italiana di Fisica, Springer-Verlag 2007

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