Breakdown of the Spectator Concept in Low-Electron-Energy Resonant Decay 
Processes

Mhamdi, A.; Rist, J.; Aslitürk, D.; Weller, M.; Melzer, N.; Trabert, D.; Kircher, M.; Vela-Pérez, I.; Siebert, J.; Eckart, S.; Grundmann, S.; Kastirke, G.; Waitz, M.; Khan, A.; Schöffler, M. S.; Trinter, Florian; Dörner, R.; Jahnke, T.; Demekhin, Ph. V.

doi:10.1103/PhysRevLett.121.243002

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Breakdown of the Spectator Concept in Low-Electron-Energy Resonant Decay Processes

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Trinter, Florian
Deutsches Elektronen-Synchrotron (DESY), FS-PE;
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Mhamdi, A., Rist, J., Aslitürk, D., Weller, M., Melzer, N., Trabert, D., et al. (2018). Breakdown of the Spectator Concept in Low-Electron-Energy Resonant Decay Processes. Physical Review Letters, 121(24): 243002. doi:10.1103/PhysRevLett.121.243002.

Cite as: https://hdl.handle.net/21.11116/0000-0002-B480-1

Abstract

We suggest that low-energy electrons, released by resonant decay processes, experience substantial scattering on the electron density of excited electrons, which remain a spectator during the decay. As a result, the angular emission distribution is altered significantly. This effect is expected to be a common feature of low-energy secondary electron emission. In this Letter, we exemplify our idea by examining the spectator resonant interatomic Coulombic decay of Ne dimers. Our theoretical predictions are confirmed by a corresponding coincidence experiment.