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Erlangen 2018 – scientific programme

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A: Fachverband Atomphysik

A 25: Poster Session I

A 25.11: Poster

Tuesday, March 6, 2018, 16:15–18:15, Redoutensaal

Direct two-electron ejection from F by a single photon — •Alfred Müller1, Alexander Borovik Jr.1, Sadia Bari2, Ticia Buhr1, Kristof Holste1, Michael Martins3, Alexander Perry-Sassmannshausen1, Ronald Phaneuf4, Simon Reinwardt3, Sandor Ricz5, Kaja Schubert2, and Stefan Schippers11Justus-Liebig-Universität Gießen — 2DESY Hamburg — 3Universität Hamburg — 4University of Nevada, Reno, USA — 5ATOMKI Debrecen, Hungary

Double and triple detachment of the F(1s2 2s2 2p6) negative ion by a single photon have been investigated in the photon energy range 660 to 1000 eV [1]. The experimental data provide unambiguous evidence for the dominant role of direct photo-double-detachment with a subsequent single-Auger process in the reaction channel leading to F2+ product ions. Absolute cross sections were determined for the direct removal of a (1s+2p) pair of electrons from F by the absorption of a single photon.
[1] A. Müller et al., (submitted).

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