Hannover 2010 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 28: Poster: Cold Molecules
MO 28.3: Poster
Donnerstag, 11. März 2010, 16:00–18:30, Lichthof
Ion molecule reaction dynamics — •Sebastian Trippel1, Martin Stei1, Rico Otto1, Thorsten Best1, Matthias Weidemüller2, and Roland Wester1 — 1Physikalisches Institut, Universität Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg — 2Physikalisches Institut, Universität Heidelberg, Albert-Überle-Str. 3-5, 69120 Heidelberg
Ion-molecule reactions exhibit a rich amount of dynamical processes due to their complex potential energy surfaces. In our experiments we are carrying out kinematically complete studies on ion-molecule reactions using a crossed beam setup combined with velocity map imaging[1][2]. We recently upgraded our detector from 2D to full 3D detection. With this detector at hand we have studied the charge transfer reaction Ar+ + N2 → Ar + N2+ in all three dimensions as a function of collision energy. In order to study steric effects in ion-molecule reactions we are using strong laser pulses to adiabatically align the molecules in free space. In future this work will be extended to reactions of molecules with microsolvated ions.
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