Article
Triple-Differential Cross Sections for Target Ionization with Simultaneous Projectile Detachment in 200-keV H⁻ + He Collisions
Physical Review A: Atomic, Molecular, and Optical Physics
Abstract
We have performed a kinematically complete experiment for target ionization with simultaneous projectile detachment (TIPD) in 200-keV H− + He collisions. From the data we extracted triple-differential cross sections (TDCSs) for each electron separately. These TDCSs closely resemble corresponding data for single ionization by charged-particle impact. Surprisingly, the contributions from higher-order processes to TIPD, proceeding through two independent interactions of each electron with the core of the respective other collision partner, are found to be somewhat larger than the first-order process proceeding through the electron-electron interaction.
Department(s)
Physics
Sponsor(s)
German Research Association
National Science Foundation (U.S.)
Keywords and Phrases
- Electrons,
- Helium,
- Ionization,
- Projectiles,
- Electron-electron interaction,
- Projectile detachment,
- Triple-differential cross section (TDCS),
- High energy physics,
- Collisions (Nuclear physics)
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2007 American Physical Society (APS), All rights reserved.
Publication Date
10-1-2007
Publication Date
01 Oct 2007
Disciplines
Citation Information
T. Ferger, Michael Schulz, Daniel Fischer, B. Najjari, et al.. "Triple-Differential Cross Sections for Target Ionization with Simultaneous Projectile Detachment in 200-keV H⁻ + He Collisions" Physical Review A: Atomic, Molecular, and Optical Physics Vol. 76 Iss. 4 (2007) p. 042708-1 - 042708-6 ISSN: 1050-2947 Available at: http://works.bepress.com/michael-schulz/4/