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SMuK 2023 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 6: New Results from Accelerators for Hadron Physics

AKBP 6.1: Gruppenbericht

Mittwoch, 22. März 2023, 11:00–11:30, HSZ/0304

Laser spectroscopy of Mg+ at CRYRING@ESR — •Konstantin Mohr1,2, Zoran Andelkovic3, Volker Hannen4, Frank Herfurth3, Max Horst1,2, Phillip Imgram1, Kristian König1,2, Claude Krantz3, Michael Lestinsky3, Yuri Litvinov3, Bernhard Maaß1,5, Esther Menz6, Patrick Müller1, Wilfried Nörtershäuser1,2, Simon Rausch1,2, Rodolfo Sánchez3, Ragandeep Singh Sidhu7, and Ken Überholz41Institut für Kernphysik, TU Darmstadt, Germany — 2Helmholtzforschungsakademie Hessen für FAIR HFHF, Darmstadt, Germany — 3GSI Helmholtzzentrum für Schwerionenforschung GmbH, Germany — 4Institut für Kernphysik, WWU Münster, Germany — 5ANL, Illinois, USA — 6Helmholtzinstitut Jena, Germany — 7University of Edinburgh, Scotland

The storage ring CRYRING@ESR at GSI/FAIR is dedicated to precision experiments with stored and cooled ions of energies down to few MeV. One of the first experiments at CRYRING@ESR was laser spectroscopy on the stable Mg isotopes, carried out to test a possible in-flight polarization buildup by optical pumping. Especially parity-non-conservation experiments would benefit from this technique. During the first attempts, we found an unexpectedly fast population transfer between the hyperfine ground states F=2,3 of 25Mg+, which could be associated with the mixing of velocity classes caused by synchrotron oscillations in bunched-beam operation. We present the current status of the experiment and discuss the influence of dynamic effects. This work is supported by BMBF contract 05P21RDFA1.

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