Non-dissociative and dissociative ionisation of H₂by 50-2000 keV antiprotons

Abstract

A beam of antiprotons with energies between 50 keV and 2 MeV has been used for measurements of non-dissociative and dissociative ionisation cross sections of H2. The results are compared with cross sections for equivelocity protons and electrons, and the role of interference effects in two-electron processes is discussed.