title: Simultaneous imaging of both product ions: exploring gateway states for HCl as a benchmark molecule.
abstract: Simultaneous imaging of both positive and negative product ions is used to exclusively study photoion pair formation free from interference of competing fragmentation channels. Resonance enhanced multi-photon excitation allows us to interrogate potential energy surfaces for vastly differing molecular geometries. 3D imaging provides complete fragment information. We applied the technique to HCl as a benchmark and identified the gateway state leading to photoion pairs. The approach can easily be applied to any molecule exhibiting a potential with an attractive part at large internuclear distances.
authors.affiliation: Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, Hans-Sommer-Straße 10, 38106 Braunschweig, Germany. mikhail.poretskiy@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Poretskiy
authors.forename: A I
authors.initials: AI
authors.lastname: Chichinin
authors.forename: C
authors.initials: C
authors.lastname: Maul
authors.forename: K-H
authors.initials: KH
authors.lastname: Gericke