New Measurement of the 2S Hyperfine Interval in Atomic Hydrogen
Atomic Physics
2013-05-29 v2
Abstract
An optical measurement of the 2S hyperfine interval in atomic hydrogen using two-photon spectroscopy of the 1S-2S transition gives a value of 177 556 834.3(6.7) Hz. The uncertainty is 2.4 times smaller than achieved by our group in 2003 and more than 4 times smaller than for any independent radio-frequency measurement. The specific combination of the 2S and 1S hyperfine intervals predicted by QED theory Hz is in good agreement with the value of 48 923(54) Hz obtained from this experiment.
Cite
@article{arxiv.0812.3509,
title = {New Measurement of the 2S Hyperfine Interval in Atomic Hydrogen},
author = {N. Kolachevsky and A. Matveev and J. Alnis and C. G. Parthey and S. G. Karshenboim and T. W. Haensch},
journal= {arXiv preprint arXiv:0812.3509},
year = {2013}
}
Comments
4 pages, 4 figures