Signatures of projectile–nucleus scattering in three-dimensional (e,2e) cross sections for argon

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 emi...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2010-02, Vol.43 (3), p.035202-035202
Main Authors: Ren, Xueguang, Senftleben, Arne, Pflüger, Thomas, Dorn, Alexander, Bartschat, Klaus, Ullrich, Joachim
Format: Article
Language:English
Subjects:
Argon
Atomic and molecular collision processes and interactions
Atomic and molecular physics
Atomic excitation and ionization by electron impact
Cross sections (physics)
Distortion
Electron impact
Electron scattering
Exact sciences and technology
Mathematical analysis
Physics
Planes
Projectiles
Scattering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 degree to -15 degree . 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.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/43/3/035202