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



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ID: 456809.0, MPI für Kernphysik / Physics of Quantum Dynamics in Atomic Fragmentation
Signatures of projectile–nucleus scattering in three-dimensional (e, 2e) cross sections for argon
Authors:Ren, X. G.; Senftleben, A.; Pflüger, T.; Dorn, A.; Bartschat, K.; Ullrich, J.
Language:English
Date of Publication (YYYY-MM-DD):2010-01-20
Title of Journal:Journal of Physics B: Atomic, Molecular and Optical Physics
Journal Abbrev.:J. Phys. B
Volume:43
Sequence Number of Article:035202
Copyright:© 2010 IOP Publishing Ltd
Review Status:not specified
Audience:Experts Only
Abstract / Description:Electron impact ionization (E0 = 195 eV) of the 3p-orbital in argon is investigated experimentally and theoretically. The triple-differential cross sections (TDCS) obtained using
a multi-particle momentum spectrometer (reaction microscope) cover more than 80% of the full solid angle for the slow emitted electron up to an energy of 25 eV and a range of projectile scattering angles from −5◦ to −15◦. Inside the projectile scattering plane the TDCS shape is
in rather good agreement with a hybrid distorted-wave plus R-matrix (DWBA-RM) calculation. Outside the scattering plane relatively strong electron emission is observed which
is reproduced by theory in magnitude but not in shape. A systematic study of the TDCS behaviour and structure in this region indicates that its origin lies in high-order
projectile−target interaction.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group of J. Ullrich/Electron Collisions (A. Dorn, C. D. Schröter)
External Affiliations:Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311, USA
Identifiers:DOI:10.1088/0953-4075/43/3/035202
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