Target electron ionization in Li2+-Li collisions: A multi-electron perspective

International Conference on Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces 2014

piewanowski, M.D.^1 ; Gulyás, L.^2 ; Horbatsch, M.^1 ; Goullon, J.^3 ; Ferreira, N.^3 ; Hubele, R.^3 ; De Jesus, V.L.B.^4 ; Lindenblatt, H.^3 ; Schneider, K.^3 ; Schulz, M.^5 ; Schuricke, M.^3 ; Song, Z.^3 ; Zhang, S.^3 ; Fischer, D.^3 ; Kirchner, T.^1

Department of Physics and Astronomy, York University, Toronto

ON

M3J 1P3, Canada^1

Institute for Nuclear Research, Hungarian Academy of Sciences (ATOMKI), P.O. Box 51, Debrecen

H-4001, Hungary^2

Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, Heidelberg

69117, Germany^3

Instituto Federal de Educação, Ciência e Tecnologia Do Rio de Janeiro (IFRJ), Rua Lucio Tavares 1045, Nilopolis/RJ

26530-060, Brazil^4

Department of Physics and LAMOR, Missouri University of Science and Technology, Rolla

MO

65409, United States^5

关键词: Inner-shell ionization;    K-shell ionization;    Multi-electron;    Multielectron process;    Single electron;    Single particle;    Target configurations;    Target electrons;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/601/1/012010/pdf
DOI  :  10.1088/1742-6596/601/1/012010

来源: IOP

【 摘 要 】

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.