Fully differential study of ionization in p + H2 collisions near electron - Projectile velocity matching

A. Hasan, T. Arthanayaka, B. R. Lamichhane, S. Sharma, S. Gurung, J. Remolina, S. Akula, D. H. Madison, M. F. Ciappina, R. D. Rivarola, M. Schulz

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12 Scopus citations


We have performed a kinematically complete experiment on ionization of H2 by 75 keV proton impact for electrons ejected with a speed close to the projectile speed. The fully differential data are compared to a three-body distorted wave and a continuum distorted wave - eikonal initial state calculation. Large discrepancies between experiment and theory, as well as between both calculations, are found. These probably arise from a strong coupling between the ionization and capture channels, which is not accounted for by theory.

Original languageEnglish
Article number04LT01
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number4
StatePublished - 25 Jan 2016
Externally publishedYes


  • Ionization
  • cold target recoil-ion momentum spectroscopy
  • energy-loss spectroscopy
  • few-body problem


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