Erlangen 2018 – scientific programme
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MO: Fachverband Molekülphysik
MO 22: Posters 3: Experimental and Theoretical Techniques and High Resolution Spectroscopy
MO 22.9: Poster
Thursday, March 8, 2018, 16:15–18:15, Zelt West
molecular frame young-type interference in (e, 2e) reactions on hydrogen molecule — •Enliang Wang1, Xueguang Ren1, Khokon Hossen1, Xingyu Li2, Xiangjun Chen2, and Alexander Dorn1 — 1Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany — 2Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
The wave-particle duality is one of the fundamental concepts of quantum mechanism where the wave like behaviors of particles were mostly demonstrate through Young’s double-slit experiment in which the coherent superposition of different outgoing amplitudes will present interference patterns. Here we perform a high energy (E0 = 520 eV) (e, 2e) experiment on H2 to trace the interference effect using a dedicated reaction microscope. The present experimental results show that a strong dependence to the molecular alignment of the FDCS is observed where two intense areas are observed with molecular alignment at 0 and 180∘ for 10 eV ejected electrons. The MCDW calculation well reproduce the experimental results while the pure interference description fails completely. This is mainly due to the rather low energy (10 eV) of the ejected electron which does not justify the spherical wave description used in the derivation of the interference factor. Future experiments will consider fast outgoing electrons (up to 80 eV) to trace the interference effect.