Heidelberg 2015 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 21: Posters 4: Novelties in Molecular Physics

MO 21.15: Poster

Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer

Towards Imaging of cold Penning-Reactions using a Li-MOT — •Jonas Grzesiak, Hanna Maier, Frank Stienkemeier, and Marcel Mudrich — Physikailsches Institut, Uni Freiburg, Hermann-Herder-Str 3, 79104 Freiburg i.Br.

Recent developments in merged beams have shed new light on cold reac tive scattering.[1] Our setup for elastic scattering of cold mole cular b eam atoms originating from a rotating nozzle and Li-atoms in a MOT is extended for reactive scattering. To this end a supersonic and cryogenic pulsed nozzle with a home-made dielectric barrier discharge has been constructed which provides an intense and cold beam of metastable atoms. We show first results on cold penning reactions of the pulsed beam atoms with the rotating nozzle beam atoms, as well as reactions between ultracold Li-atoms originating from the MOT and the pulsed beam atoms. In prospect of imaging the reaction kinematics the use of an ion imaging detector is discussed.

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