1. Measurement of the 1s-2s energy interval in muonium
- Author
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Meyer, V., Bagayev, S. N., Baird, P. E. G., Bakule, P., Boshier, M. G., Breitrueck, A., Cornish, S. L., Dychkov, S., Eaton, G. H., Grossmann, A., Huebl, D., Hughes, V. W., Jungmann, K., Lane, I. C., Liu, Y. W., Lucas, D., Matyugin, Y., Merkel, J., Putlitz, G. zu, Reinhard, I., Sandars, P. G. H., Santra, R., Schmidt, P., Scott, C. A., Toner, W. T., Towrie, M., Traeger, K., Willmann, L., and Yakhontov, V.
- Subjects
High Energy Physics - Experiment - Abstract
The 1s-2s interval has been measured in the muonium ({$\mu^+e^-$}) atom by Doppler-free two-photon laser spectroscopy. The frequency separation of the states was determined to be 2 455 528 941.0(9.8) MHz in good agreement with quantum electrodynamics. The muon-electron mass ratio can be extracted and is found to be 206.768 38(17). The result may be interpreted as measurement of the muon-electron charge ratio as $-1- 1.1(2.1)\cdot 10^{-9}$., Comment: 12 Pages, 4 figures
- Published
- 1999
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