SAMOP 2021 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 4: Precision spectroscopy of atoms and ions (joint session A/Q)
Q 4.5: Poster
Monday, September 20, 2021, 16:30–18:30, P
A New Experiment for the Measurements of the Nuclear Magnetic Moment of 3He2+ and the Ground-State Hyperfine Splitting of 3He+ — •Annabelle Kaiser1,2, Antonia Schneider1, Bastian Sikora1, Andreas Mooser1, Stefan Dickopf1,2, Marius Müller1, Alexander Rischka1, Stefan Ulmer3, Jochen Walz4,5, Zoltan Harman1, Christoph H. Keitel1, and Klaus Blaum1 — 1Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany — 2Heidelberg University, Heidelberg, Germany — 3RIKEN, Wako, Japan — 4Johannes Gutenberg-University, Mainz, Germany — 5Helmholtz-Institute Mainz, Germany
The Heidelberg 3He-experiment is aiming at the first direct high-precision measurement of the nuclear magnetic moment of 3He2+ with
a relative uncertainty on the 10−9 level and an improved measurement
of the ground-state hyperfine splitting of 3He+ by at least one order
of magnitude. The helion nuclear magnetic moment is an important
parameter for the development of hyperpolarized 3He-NMR-probes for
absolute magnetometry. The HFS measurement of 3He+ is sensitive to
nuclear structure effects and would give information about such effects
in a three-nucleon system. For the 3He+ and 3He2+ measurements, two and four Penning trap
setups were designed respectively, and similar techniques as already demonstrated in
proton and antiproton magnetic moment measurements [1,2] are going
to be applied. The current status of the experiment is presented.
[1] Schneider et al., Science Vol 358, 1081 (2017)
[2] Smorra et al., Nature, Vol 550, 371 (2017)