Title

Probing electronic states of Ne-2(+) and Ar-2(+) by measuring kinetic-energy-release distributions

Abstract

Dissociative decay of metastable, electronically excited neon and argon dimer ions produces fragment ions with strikingly dissimilar kinetic-energy-release distributions. The distributions have been modeled based on ab initio calculations of potential energy curves. The unusual bimodal distribution observed for dissociation of Ne-2 (+) arises from competition between radiative and nonradiative decay of the long-lived II(1/2)(u) state. For Ar-2 (+), however, electronic predissociation is insignificant.

Department

Physics

Publication Date

9-26-2003

Journal Title

Physical Review Letters

Publisher

AMERICAN PHYSICAL SOCIETY

Digital Object Identifier (DOI)

10.1103/PhysRevLett.91.133401

Document Type

Article

Rights

© 2003 The American Physical Society

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