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

Authors

J. Fedor
R. Parajuli
S. Matt-Leubner
Olof E. Echt, University of New HampshireFollow
F. HagelbergFollow
K. Gluch
A. StamatovicFollow
M. ProbstFollow
P. ScheierFollow
T. D. Mark

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

Recommended Citation

Fedor, J.; Parajuli, R.; Matt-Leubner, S.; Echt, Olof E.; Hagelberg, F.; Gluch, K.; Stamatovic, A.; Probst, M.; Scheier, P.; and Mark, T. D., "Probing electronic states of Ne-2(+) and Ar-2(+) by measuring kinetic-energy-release distributions " (2003). Physical Review Letters. 136.
https://scholars.unh.edu/physics_facpub/136

Rights

© 2003 The American Physical Society