Article
Three-Body Coulomb Problem Probed by Mapping the Bethe Surface in Ionizing Ion-Atom Collisions
Physical Review Letters
Abstract
The three-body Coulomb problem has been explored in kinematically complete experiments on single ionization of helium by 100 MeV / u C 6 + and 3.6 MeV / u u 5 3 + impact. Low-energy electron emission (E e < 150 eV ) as a function of the projectile deflection ϑ p (momentum transfer), i.e., the Bethe surface [[15]], has been mapped with Δ ϑ p ± 25 nanoradian resolution at extremely large perturbations (3.6 MeV / uAu53+ ) where single ionization occurs at impact parameters of typically 10 times the He K -shell radius. The experimental data are not in agreement with state-of-the-art continuum distorted wave-eikonal initial state theory.
Department(s)
Physics
Keywords and Phrases
- Approximation theory,
- Continuum mechanics,
- Electron emission,
- Helium,
- Impact ionization,
- Kinematics,
- Perturbation techniques,
- Bethe surface,
- Ion atom collisions,
- Momentum transfer,
- Nanoradian resolution,
- Projectile deflection,
- Atomic physics
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2001 American Physical Society (APS), All rights reserved.
Publication Date
11-1-2001
Publication Date
01 Nov 2001
Disciplines
Citation Information
Robert Moshammer, Appathurai N. Perumal, Michael Schulz, V. D. Rodriguez, et al.. "Three-Body Coulomb Problem Probed by Mapping the Bethe Surface in Ionizing Ion-Atom Collisions" Physical Review Letters Vol. 87 Iss. 22 (2001) p. 223201/1 - 223201/4 ISSN: 0031-9007 Available at: http://works.bepress.com/michael-schulz/130/