Three-Body Momentum Exchange in Singly Ionizing 2-MeV/u C⁶⁺-Helium Collisions

Abstract

We study helium single ionization with emission of low-energy (ɛk < 10eV) electrons in collisions with 2 -- MeV/u C6+ ions. We explore, both experimentally and theoretically, longitudinal and transverse momentum distributions of the final reaction products. We present in-depth discussion of mechanisms resulting in the forward-backward asymmetry in the longitudinal spectra of emitted electrons and recoil ions. By comparing our experimental data and calculations we display clear signatures of the interaction between the projectile and the target core (the n -- n interaction) for the transverse distributions of the recoil ion and projectile. For the collision system in question the n -- n interaction is shown to represent an important mechanism of the momentum exchange.

Department(s)

Physics

Keywords and Phrases

Approximation Theory; Electron Emission; Electron Spectroscopy; Helium; High Energy Physics; Ion Exchange; Magnetic Field Effects; Photons; Born Approximation; Ion Collisions; Photon Exchanges; Three Body Momentum Exchange

International Standard Serial Number (ISSN)

1050-2947

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2003 American Physical Society (APS), All rights reserved.

Publication Date

01 Sep 2003

Link to Full Text

Share

 
COinS