Hannover 2010 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 26: Electron Scattering and Recombination / Interaction of Matter with Ions (with MO)

A 26.5: Vortrag

Freitag, 12. März 2010, 12:00–12:15, B 302

Theory of higher-order resonant recombination processes in highly charged ions — •Zoltán Harman1,2, Octavian Postavaru1,2, Jacek Zatorski1, and Christoph H. Keitel11Max-Plank-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany — 2ExtreMe Matter Institute EMMI, Planckstrasse 1, 64291 Darmstadt, Germany

We report theoretical calculations on trielectronic recombination with simultaneous excitation of a K-shell and an L-shell electron, hence involving three active bodies. This process was identified in the x-ray emission spectrum of recombining highly charged Ar, Fe and Kr ions. For Kr30+, inter-shell trielectronic recombination contributions of nearly 6% to the total resonant photorecombination rate were found [1]. We predict even higher contributions for lighter elements.

[1] C. Beilmann, O. Postavaru, L. H. Arntzen, et  al., Phys. Rev. A (R), 80, 050702 (2009)

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