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Article
Strongly Enhanced Backward Emission of Electrons in Transfer and Ionization
Physical Review Letters
  • Michael Schulz, Missouri University of Science and Technology
  • Xincheng Wang
  • M. Gundmundsson
  • Katharina R. Schneider
  • Aditya H. Kelkar
  • Alexander B. Voitkiv
  • B. Najjari
  • Markus S. Schoffler
  • Lothar Ph H H Schmidt
  • Reinhard Dorner
  • Joachim Hermann Ullrich
  • Robert Moshammer
  • Daniel Fischer, Missouri University of Science and Technology
Abstract

We studied three-dimensional angular distributions and longitudinal momentum spectra of electrons ejected in transfer plus ionization (TI), i.e., the ejection of one and the capture of a second target electron, for ion-helium collisions. We observe a pronounced structure strongly focused opposite to the projectile beam direction, which we associate with a new correlated TI mechanism proposed recently. This process contributes significantly to the total cross sections over a broad range of perturbations η, even at η as large as 0.5, where uncorrelated TI mechanisms were thought to be dominant.

Department(s)
Physics
Keywords and Phrases
  • Emission Of Electron,
  • Longitudinal Momentum,
  • Projectile Beam,
  • Target Electrons,
  • Total Cross Section,
  • Angular Distribution,
  • Helium,
  • Ionization
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2012 American Physical Society (APS), All rights reserved.
Publication Date
1-1-2012
Publication Date
01 Jan 2012
Disciplines
Citation Information
Michael Schulz, Xincheng Wang, M. Gundmundsson, Katharina R. Schneider, et al.. "Strongly Enhanced Backward Emission of Electrons in Transfer and Ionization" Physical Review Letters Vol. 108 Iss. 4 (2012) p. 043202-1 - 043202-5 ISSN: 0031-9007
Available at: http://works.bepress.com/michael-schulz/122/