Nuclear Dynamics in Electronic Cascades

The nuclear dynamics during the electronic cascades in molecules is studied both, theoretically and experimentally. The theoretical approach is based on the time-dependent theory for wave packet propagation, which is known to be a powerful tool providing a better insight into the picture in the real time scale of the process. It is applied to study the impact of nuclear dynamics on the interatomic Coulombic decay (ICD) in Ne2 and NeAr dimers following the K-LL Auger decay in Ne atom. In the theory, the recoil of nuclei by a fast photo- and Auger electrons is taken into account. An enormous effect of the recoil of nuclei on the computed dynamics of nuclear wave packets and ICD spectra is obtained. Theoretical results are in a very good agreement with the recent experiments performed by means of the cold target recoil ion momentum spectroscopy (COLTRIMS).

Cooperations: Prof. Dr. L.S. Cederbaum (University of Heidelberg, Germany), Prof. Dr. R. Dorner (University of Frankfurt/Main, Germany), and
Prof. Dr. K. Ueda (Tohoku University, Sendai, Japan)
Status: in progress