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

Library of Congress Subject Headings

Collisions (Nuclear physics)
Differential cross sections

International Standard Serial Number (ISSN)

1050-2947

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2007 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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