Cold-target recoil-ion momentum spectroscopy studies of capture from atomic and molecular hydrogen by O8+ and Ar8+

E. Edgu-Fry, A. Wech, J. Stuhlman, T. G. Lee, C. D. Lin, and C. L. Cocke
Phys. Rev. A 69, 052714 – Published 19 May 2004

Abstract

We have used cold-target recoil-ion momentum spectroscopy to study electron capture from atomic and molecular hydrogen targets by slow (0.3<v<0.95a.u.) O8+ and Ar8+ ions. For the atomic hydrogen target, we have performed coupled-channel calculations using an atomic orbital expansion to compare to the experimental results. The Q-value spectra show strong populations of both n=5 and n=6 states on the projectile, with a tendency for increasing the population of high-angular momentum states for higher projectile velocity. A strong population of n=6 is found, a result not previously reported but in good agreement with the present calculations.

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  • Received 12 January 2004

DOI:https://doi.org/10.1103/PhysRevA.69.052714

©2004 American Physical Society

Authors & Affiliations

E. Edgu-Fry*, A. Wech, J. Stuhlman, T. G. Lee, C. D. Lin, and C. L. Cocke

  • J. R. Macdonald Laboratory, Department of Physics, Kansas, State University, Manhattan, Kansas 66506, USA

  • *Present address: Physics Division, National Institute of Technology, Gaithersburg, MD 20899, USA.
  • Present address: Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
  • Electronic address: cocke@phys.ksu.edu

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Issue

Vol. 69, Iss. 5 — May 2004

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