Freiburg 2024 – scientific programme
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A: Fachverband Atomphysik
A 16: Poster II
A 16.2: Poster
Tuesday, March 12, 2024, 17:00–19:00, Tent B
In-trap laser-ablation ion-source for precision magnetic moment measurements — •Ute Beutel1,2, Stefan Dickopf1, Annabelle Kaiser1, Ankush Kaushik1, Marius Müller1, Stefan Ulmer3,4, Andreas Mooser1, and Klaus Blaum1 — 1Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 2Ruprecht-Karls-Universität, Heidelberg, Germany — 3Institut für Experimentalphysik, Heinrich-Heine-Universität, Düsseldorf, Germany — 4RIKEN, Wako, Japan
High-precision measurements of magnetic-moments in Penning traps have been performed to great success for various different systems. For example, measurements of the bound-electron g-factor could be used to determine the electron mass [1] and comparisons of the proton and antiproton magnetic moments set bounds on CPT violations [2].
At our experiment, we have performed measurements of the ground-state Zeeman and hyperfine splitting of 3He+ for the determination of the helion magnetic moment [3]. The equivalent measurement on 9Be3+ was recently enabled by in-trap laser-ablation.
Future measurements on various ions and isotopes require a more versatile in-trap laser-ablation ion-source which is currently being developed.
The recent status and ongoing progress will be presented.
[1] S. Sturm et al., Nature 506, 467 (2014)
[2] C. Smorra et al., Nature, Vol 550, 371 (2017)
[3] A. Schneider et al., Nature 606, 878-883 (2022)
Keywords: Penning trap; Hyperfine structure