Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 41: Poster: Electron scattering and recombination

A 41.7: Poster

Donnerstag, 21. März 2013, 16:00–18:30, Empore Lichthof

First observation of correlated photons emitted by a heavy highly charged ion — •Stanislav Tashenov1, Dariusz Banas2, Heinrich Beier3, Karl-Heinz Blumenhagen3, Carsten Brandau3,5, Alexandre Gumberidze3,5, Tobias Habermann3, Siegbert Hagmann3, Pierre-Michel Hillenbrand3, Ivan Kojouharov3, Christophor Kozhuharov3, Michael Lestinsky3, Yury Litvinov3, Shizu Minami3, Henning Schaffner3, Uwe Spillmann3, Thomas Stöhlker3,4, and Andrey Surzhykov1,31Physics Institute, Heidelberg University, Heidelberg, Germany — 2Institute of Physics, Jan Kochanowski University, Kielce, Poland — 3GSI Helmholtzzentrum, Darmstadt, Germany — 4Helmholtz-Institut Jena, Germany — 5ExtreMe Matter Institute EMMI, GSI, Darmstadt, Germany

Two correlated photons emitted in the process of Radiative Electron Capture (REC) into an excited state 2p3/2 of an initially bare uranium ion followed by its radiative decay were detected in coincidence. For this a relativistic beam of bare uranium ions, stored in the GSI storage ring ESR, collided with a gas target of N2 atoms. The photons were detected by a setup of segmented large area germanium detectors. This experiment for the first time allows to determine the alignment of the states produced by REC where the recombination photon is observed. It represents a significant step towards the complete experiment of REC as well as of the photoelectric effect in time reversal.

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