Title

Triply Differential Single-Ionization Cross Sections in Fast Ion-Atom Collisions at Large Perturbation

Abstract

We present experimental triply differential single-ionization cross sections for electrons emitted into the scattering plane in 3.6 MeV amu-1 Au53+ + He collisions, i.e. for a large perturbation. The data show that the post-collision interaction between the scattered projectile and the ionized electron strongly affects the recoil peak, but it influences the binary peak rather weakly. Surprisingly, the continuum distorted wave-eikonal initial state model, which describes differential electron spectra very well, fails to reproduce our data even qualitatively. Most notably, it does not show a recoil peak.

Department(s)

Physics

Keywords and Phrases

Approximation theory; Atoms; Electron emission; Electron scattering; Perturbation techniques; Positive ions; Single-ionization; Ionization

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2002 Institute of Physics - IOP Publishing, All rights reserved.

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