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          Institute: MPI für Kernphysik     Collection: Physics of Quantum Dynamics in Atomic Fragmentation     Display Documents



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ID: 287899.0, MPI für Kernphysik / Physics of Quantum Dynamics in Atomic Fragmentation
Single ionization of helium by 102 eV electron impact: three-dimensional images for electron emission
Authors:Dürr, M.; Dorn, A.; Najjari, B.; Dimopoulou, C.; Bray, I.; Fursa, D. V.; Chen, Z.; Madison, D. H.; Bartschat, K.; Ullrich, J.
Language:English
Date of Publication (YYYY-MM-DD):2006-10-02
Title of Journal:Journal of Physics B: Atomic, Molecular and Optical Physics
Journal Abbrev.:J. Phys. B: At., Mol. and Opt. Phys.
Volume:39
Issue / Number:20
Start Page:4097
End Page:4111
Copyright:© Institute of Physics and IOP Publishing Limited 2006
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Single ionization of helium by 102 eV electron impact has been studied by measuring the momentum vectors of all final-state particles, i.e., two electrons and the He+ ion, with an advanced reaction microscope. Fully differential cross sections for asymmetric scattering geometry, which have been normalized to an absolute scale, have been obtained covering a large range of emission angles for the emitted low-energy (E ≤ 15 eV) electron and different scattering angles for the fast electron. Strong electron emission out of the projectile scattering plane is confirmed for electron impact, as was observed before for heavy-ion impact ionization. The data are compared with theoretical predictions from a three-Coulomb wavefunction model, first-order and second-order distorted-wave approaches, as well as a convergent close-coupling calculation.S
Classification / Thesaurus:34.80.Dp
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group J. Ullrich/Electron Collisions (A. Dorn)
External Affiliations:ARC Centre for Antimatter-Matter Studies, Murdoch University, Perth, WA 6150, Australia
Laboratory of Atomic and Molecular Research, University of Missouri-Rolla, Rolla, MO 65409, USA
Department of Physics and Astronomy, Drake University, Des Moines, IA 50311, USA
Identifiers:DOI:doi:10.1088/0953-4075/39/20/008
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