Hannover 2010 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 9: Poster: Collisions, Energy Transfer

MO 9.1: Poster

Dienstag, 9. März 2010, 16:00–18:30, Lichthof

Electron impact ionisation of aligned hydrogen molecules — •Arne Senftleben, Xueguang Ren, Thomas Pflüger, Alexander Dorn, and Joachim Ullrich — Max-Planck-Institut für Kernphysik

Fully differential cross-sections (FDCS) for electron impact ionization of simple molecules have found increased interest over the last years. However, up to now no experimental data has been available for aligned molecules. Using an advanced reaction microscope we performed a kinematically complete experiment where the momentum vectors of all final state particles were determined. The alignment of the molecular axis was derived from post-collision dissociation of the residual ion. Results will be presented for two distinct reaction channels: Ground-state ionisation and autionisation.