Double and transfer ioinization in collisions of He with bare ions

L. Gulyás, A. Igarashi, T. Kirchner

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Double and transfer ionization processes are theoretically investigated for collisions of He atoms with bare energetic projectile ions. Two-electron transition amplitudes are described by linear combinations of products of one-electron transition amplitudes, which enables one to incorporate the effects of electron correlation in the asymptotic channels. A collision mechanism in which the projectile interacts separately with both electrons gives a realistic account of the processes only at medium impact energies, while the final state correlation and the shake-off mechanism together with correlations in the initial state are found to be important for the lower and higher collision energies, respectively.

Original languageEnglish
Article number024701
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
Publication statusPublished - Aug 2 2012


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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