Collinear Laser Spectroscopy of $2{}^3{S}_1\to 2{}^3{P}_J$ transitions in helium-like ${}^{12}{\mathrm{C}}^{4+}$

Abstract

Transition frequencies and fine-structure splittings of the $2{}^3{S}_1\to 2{}^3{P}_J$ transitions in helium-like ${}^{12}{\mathrm{C}}^{4+}$ were measured by collinear laser spectroscopy on a 1-ppb level. Accuracy is increased by more than three orders of magnitude with respect to previous measurements, enabling tests of recent non-relativistic QED calculations including terms up to $m{\alpha }^7$. Deviations between the theoretical and experimental values are within theoretical uncertainties and are ascribed to $m{\alpha }^8$ and higher-order contributions in the series expansion of the NR-QED calculations. Finally, prospects for an all-optical charge radius determination of light isotopes are evaluated.

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Cited by in corpus (8)

• Towards Precision Muonic X-Ray Measurements of Charge Radii of Light Nuclei
• The nuclear charge radius of ${}^{13}\mathrm{C}$
• High Voltage Determination and Stabilization for Collinear Laser Spectroscopy Applications
• Collinear laser spectroscopy of highly charged ions produced with an electron beam ion source
• Transition frequencies, isotope shifts, and hyperfine structure in $4s\to 4p$ transitions of Ti${}^{+}$ ions
• Ultra-stable 3D-printed precision voltage divider for calibrations and experiments
• A new beamline for Resonant Excitation of Beams with Electromagnetic fields and Lasers (REBEL) and Stopping and Trapping of Radioactive Isotopes for Precision Experiments (STRIPE)
• Splitting Isotope Shift in the $1s2p{}^3{P}_{0,1,2}$ Fine-Structure Triplet in ${}^{12,13,14}$C${}^{4+}$: Experiment and Theory