[Untitled]

Authors :: P E G Baird
J. Merkel
Yi-Wei Liu
S Dychkov
WT Toner
Lorenz Willmann
D Hubl
Michael Towrie
Simon L. Cornish
I. C. Lane
P. V. Schmidt
V. W. Hughes
SN Bagayev
P. Bakule
S. Reinhard
A. Grossmann
K. Träger
D Lucas
Klaus-Peter Jungmann
Robin Santra
G. H. Eaton
M. G. Boshier
P.G.H. Sandars
Y Matyugin
Christopher A. Scott
B Meyer
G. zu Putlitz
A. Breitrück
Yakhontov
Source :: Hyperfine Interactions. 127:197-200
Publication Year :: 2000
Publisher :: Springer Science and Business Media LLC, 2000.
Abstract: The 1s–2s energy interval in the muonium (μ+e−) atom has been measured by Doppler free two photon laser spectroscopy. A value of 2455528941.0(9.8) MHz has been obtained in good agreement with quantum electrodynamics (QED). The muon-electron mass ratio can be extracted and is found to be 206.76838(17). The measurement may also be interpreted as a determination of the muon-electron charge ratio as -1- 1.1(2.1)· 10−9. Corresponding measurements in deuterium using the same experimental setup confirmed the validity of the applied analysis procedure.