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MO: Fachverband Molekülphysik
MO 8: Poster: Collisions
MO 8.6: Poster
Dienstag, 12. März 2024, 17:00–19:00, Tent C
Auger spectrum of the ultra-fast dissociating 2p3/2−1σ* resonance in HCl in the semi-classical one-center approximation — •Mateja Hrast1,2 and Matjaž Žitnik1,3 — 1Jozef Stefan Institute, Ljubljana, Slovenia — 2Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria — 3Faculty of Mathematics and Physics, University of Ljubljana, Slovenia
We present an ab-initio theoretical L-VV resonant Auger spectrum of the ultrafast dissociating 2p3/2−1σ* resonance in HCl. The decay rates are derived in one-center approximation and a semi-classical description of dissociation is considered. The calculated profiles of Auger spectral lines resemble those of atomic Auger decay but with the characteristic tails extending towards lower electron kinetic energies. The calculated line asymmetries reflect dissociation dynamics along the potential energy curve of the initial state and its relative position with respect to the potential energy curves of the corresponding final states. For some transitions, the line shape is also strongly affected by the variation of Auger decay rate with the internuclear distance.
Keywords: Molecular Auger decay; Ultrafast dissociation