Hannover 2016 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 19: Posters 4: Novelties in Molecular Physics: Femtosecond Spectroscopy, Molecular Clusters, Cold Molecules and Helium Droplets

MO 19.20: Poster

Donnerstag, 3. März 2016, 16:30–19:00, Empore Lichthof

Cold Penning-Reactions using a Li-MOT — •Jonas Grzesiak, Frank Stienkemeier, and Marcel Mudrich — Physikalisches Institut, Universtität Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg i.Br.

Cold reactive scattering, especially in merged beams, has recently attracted wide attention.[1] Our setup for measuring elastic scattering of cold atoms and molecules originating from a rotating nozzle and atoms trapped in a Li-MOT has been extended for investigating reactive scattering. To this end we use a pulsed supersonic and cryogenic source with different homemade discharge units to provide an intense and cold beam of metastable rare gas atoms. We discuss the optimization of the metastable source as well as first results on cold Penning reactions of the pulsed beam atoms with the ultracold Li-atoms from the MOT. A detailed study of the possible extension of our setup combining the rotating nozzle with the pulsed source in a merged beams experiment is given.

[1] A. B. Henson, S. Gersten, Y. Shagam, J. Narevicius, E. Narevicius, Science 338, 234 (2012).