Contribution of transfer ionization to cusp electron production in proton on argon collisions

L. Vikor, P. A. Zâvodszky, L. Sarkadi, J. A. Tanis, M. Kuzel, A. Bader, J. Pâlinkâs, E. Y. Kamber, D. Berényi, K. O. Groeneveld

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Cusp-electron emission in proton on argon collisions has been investigated at impact energies 33, 50 and 75 keV. By detecting the electrons in coincidence with the charge-stateanalysed outgoing H+,()projectiles, the process of electron capture to the continuum (ECC), aswell as the process of simultaneous ecc and bound-state capture (transfer ionization, n) wereidentified. The ratios of the yields for cusp-electron production by re and ecc are found todecrease with increasing projectile energies. At the lowest proton energy (33 keV) the measuredTi/ECC ratio is about four times smaller than the corresponding ratio for incident He+measuredin earlier work. Significant is the finding that there exists a cusp associated with Ti events, and, moreover, that this cusp is present for neutral outgoing projectiles.

Original languageEnglish
Pages (from-to)3915-3925
Number of pages11
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number17
Publication statusPublished - Sep 14 1995


ASJC Scopus subject areas

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

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