Target electron removal in Li2+-Li collisions at 2290 keV/amu is studied experimentally and theoretically for ground and excited lithium target configurations. It is shown that in outer-shell ionization a single-electron process plays the dominant part. However, the K-shell ionization results are more difficult to interpret. According to our calculations, the process is shown to be strongly single-particle like. On one hand, a high resemblance between theoretical single-particle ionization and exclusive inner-shell ionization is demonstrated, and contributions from multi-electron processes are found to be weak. On the other hand, it is indicated by the discrepancy between experimental and single-particle theoretical results that multi-electron processes involving ionization from the outer-shell may play a crucial role.
M. D. Piewanowski and L. Gulyas and M. W. Horbatsch and J. Goullon and N. Ferreira and R. Hubele and V. L. De Jesus and H. Lindenblatt and K. R. Schneider and M. Schulz and M. Schuricke and Z. Song and S. Zhang and D. Fischer and T. Kirchner, "Target Electron Ionization in Li²⁺-l-Li Collisions: A Multi-Electron Perspective," Journal of Physics: Conference Series, vol. 601, no. 1, pp. 12010-12017, Institute of Physics - IOP Publishing, Apr 2015.
The definitive version is available at https://doi.org/10.1088/1742-6596/601/1/012010
International Conference on Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces (2014: Jul. 15-18, Metz, France)
Keywords and Phrases
Engineering Controlled Terms: Electric Conductance; Ionization; Lithium; Molecules; Particle Spectrometers; Shells (Structures); Inner-shell Ionization; K-shell Ionization; Multi-electron; Multielectron Process; Single Electron; Single Particle; Target Configurations; Target Electrons; Electrons
International Standard Serial Number (ISSN)
Article - Conference proceedings
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01 Apr 2015