Hyperfine-Induced 1s2s $^{1} S_{0}$ -1s2p $^{3} P_{0}$ Transition and Fine-Structure Measurement in Heliumlike Nitrogen

24 June 1996

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 76 (26) , 4899-4902
https://doi.org/10.1103/physrevlett.76.4899

Abstract

We have observed the

1 s 2 s^{1} S_{0} - 1 s 2 p^{3} P_{0}

transition in

^{14} N^{5 +}

using Doppler-tuned fast-beam laser spectroscopy. This transition, absolutely forbidden for atoms with zero nuclear spin, occurs due to mixing of states of different

J

by the hyperfine interaction. By measuring the difference between the

2^{1} S_{0} - 2^{3} P_{1, F}

and

2^{1} S_{0} - 2 {}^{3}P_{0}

transition energies, we have obtained a value for the

1 s 2 p^{3} P_{1} - {}^{3}P_{0}

fine-structure splitting in

N^{5 +}

. Our result will test quantum-electrodynamic corrections to recent high precision calculations [Z.-C. Yan and G. W. F. Drake, Phys. Rev. Lett. 74, 4791 (1995)].

Keywords

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Hyperfine-Induced 1s2s1S0-1s2p3P0Transition and Fine-Structure Measurement in Heliumlike Nitrogen

Abstract

Keywords

Hyperfine-Induced 1s2s $^{1} S_{0}$ -1s2p $^{3} P_{0}$ Transition and Fine-Structure Measurement in Heliumlike Nitrogen