Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 9: Instrumentation I

HK 9.6: Vortrag

Montag, 30. März 2020, 17:45–18:00, J-HS C

New Two-Photon Decay Experiments - Status and First Results — •Martin Baumann1, Thomas Aumann1,2, Michael Beckstein1, Patrick van Beek1, Daniel Körper2, Bastian Löher2, Heiko Scheit1, and Dmytro Symochko11Institut für Kernphysik, TU Darmstadt, Germany — 2GSI Helmholtzzentrum, Darmstadt, Germany

The 4π NaI detector array Heidelberg-Darmstadt Crystal Ball has been modified to host up to 18 LaBr3 detectors. In combination with a new compton suppression system called BACCHUS this makes new experimental studies of the competitive two-photon nuclear decay possible, significantly reducing measurement time in comparison to previous experiments. Also the angular distribution between the two emitted photons can be now probed for a larger set of angles. The new setup and first results for the 11/2 state of 137-Ba will be presented.
Supported by DFG (SFB 1245)

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