L 3-subshell alignment of argon following charge-changing collisions with protons

L. Sarkadi, T. Vajnai, J. Pálinkás, A. Kövér, J. Végh, T. Mukoyama

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The alignment of the L 3 subshell of Ar induced by electron capture has been studied experimentally for proton impact in the energy range 0.3-1.0 MeV. The experiment is based on the measurement of the angular distribution of the L-MM Auger electrons detected in coincidence with the outgoing neutral H atoms. The results have been compared with the predictions of the Oppenheimer-Brinkmann-Kramers approximation, the strong potential Born approximation, the continuum distorted wave theory and the impulse approximation. The tendency of the measured data towards large negative alignment at high collision energies is in accordance with the asymptotical behaviour characteristic of the capture theories. At lower energies large deviations have been found between the experiment and the theories which can only be partly explained by experimental effects. This finding indicates the failure to understand the capture-induced alignment by the existing theories.

Original languageEnglish
Article number023
Pages (from-to)3643-3657
Number of pages15
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume23
Issue number20
DOIs
Publication statusPublished - Oct 28 1990

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alignment
argon
collisions
protons
proton impact
approximation
electron capture
Born approximation
energy
impulses
tendencies
angular distribution
continuums
deviation
predictions
atoms
electrons

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

L 3-subshell alignment of argon following charge-changing collisions with protons. / Sarkadi, L.; Vajnai, T.; Pálinkás, J.; Kövér, A.; Végh, J.; Mukoyama, T.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 23, No. 20, 023, 28.10.1990, p. 3643-3657.

Research output: Contribution to journalArticle

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