Laser spectroscopy of the ${}^2{S}_{1/2}{-}^2{P}_{1/2}$, ${}^2{P}_{3/2}$ transitions in stored and cooled relativistic C${}^{3+}$ ions

Abstract

The ${}^2{S}_{1/2}{-}^2{P}_{1/2}$ and ${}^2{S}_{1/2}{-}^2{P}_{3/2}$ transitions in Li-like carbon ions stored and cooled at a velocity of $\beta \approx 0.47$ in the Experimental Storage Ring (ESR) at the GSI Helmholtz Centre in Darmstadt have been investigated in a laser spectroscopy experiment. Resonance wavelengths were obtained using a new continuous-wave UV laser system and a novel extreme UV (XUV) detection system to detect forward emitted fluorescence photons. The results obtained for the two transitions are compared to existing experimental and theoretical data. A discrepancy found in an earlier laser spectroscopy measurement at the ESR with results from plasma spectroscopy and interferometry has been resolved and agreement between experiment and theory is confirmed.

arXiv comment12 pages, 6 figures

References in corpus (6)

• QED tests with highly-charged ions
• Observation of the hyperfine transition in lithium-like Bismuth ${}^{209}{\text{Bi}}^{80+}$: Towards a test of QED in strong magnetic fields
• Interferometric measurement of resonance transition wavelengths in C IV, Si IV, Al III, Al II, and Si II
• Relativistic configuration-interaction calculations of energy levels of the $1s^{2}2l$ and $1s2l2l^{\prime }$ states in lithium-like ions: carbon through chlorine
• Detection system for forward emitted photons at the Experimental Storage Ring at GSI
• Cooling rates and intensity limitations for laser-cooled ions at relativistic energies

Cited by in corpus (2)

• Laser Spectroscopy for the Study of Exotic Nuclei
• Relativistic Maxwell-Bloch Equations with Applications to Astrophysics