Hannover 2020 – scientific programme

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A: Fachverband Atomphysik

A 9: Poster Session - Atomic Physics I

A 9.1: Poster

Monday, March 9, 2020, 16:00–18:00, Empore Lichthof

Two-center dielectronic recombination and interatomic coulombic electron capture in slow atomic collisions — •Andreas Jacob, Carsten Müller, and Alexander B. Voitkiv — Institute for Theoretical Physics I, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany

We study recombination of a free electron with an atomic species A, which move in a gas of another species B [1,2]. Recombination proceeds via resonant transfer of energy excess to B which either becomes excited and then stabilizes via spontaneous radiative decay [1] (two-center dielectronic recombination; 2CDR) or becomes ionized [2] (interatomic coulombic electron capture; ICEC). We compare these processes with each other and with the well-known single-center process of radiative recombination and discuss under which conditions they can outperform the latter.

[1] A. Jacob, C. Müller, and A. B. Voitkiv, Phys. Rev. A 100, 012706 (2019).

[2] A. Jacob, C. Müller, and A. B. Voitkiv, J. Phys. B 52, 225201 (2019).