Three-Body Momentum Exchange in Singly Ionizing 2-MeV/u C6+-Helium Collisions
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.
D. Fischer et al., "Three-Body Momentum Exchange in Singly Ionizing 2-MeV/u C6+-Helium Collisions," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 68, no. 3, pp. 032709-1-032709-7, American Physical Society (APS), Sep 2003.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevA.68.032709
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)
Article - Journal
© 2003 American Physical Society (APS), All rights reserved.