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Abstract:
We consider transfer ionization in collisions of fast (3.6–11 MeV/u) protons, α particles and lithium nuclei with helium atoms. There are just a few basic mechanisms contributing to this process which can be grouped into correlated ones, which crucially depend on the electron-electron interaction, and uncorrelated, which do not need this interaction to proceed. We show that by exploring momentum spectra of the emitted electrons the correlated and uncorrelated mechanisms can be clearly separated from each other. This exploration also enables one to get insight into subtle details of the dynamics of transfer ionization.
