Single- and two-centre effects in fully differential cross sections for single ionization of H2 molecules by 75 keV protons

M. F. Ciappina, C. A. Tachino, R. D. Rivarola, S. Sharma, M. Schulz

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10 Scopus citations

Abstract

We present theoretical calculations of single ionization of H2 molecules by 75 keV proton impact. The computed fully differential cross sections for different electron ejection geometries and projectile kinematical conditions are compared with recent measurements made by Hasan et al (2014 J. Phys. B: At. Mol. Opt. Phys. 47 215201). We employ a molecular version of the continuum distorted wave-eikonal initial state model, where all the interactions present in the exit channel are considered on an equal footing. In addition, our approach allows us to incorporate different interference terms and to assess their influence. Overall, the agreement between experiment and theory is better than for the case of more sophisticated schemes for coplanar geometries.

Original languageEnglish
Article number115204
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume48
Issue number11
DOIs
StatePublished - 14 Jun 2015
Externally publishedYes

Keywords

  • Atomic collisions
  • Distorted wave models
  • Interference effects

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