Measurement of the 1s-2s energy interval in muonium

Citation
V. Meyer et al., Measurement of the 1s-2s energy interval in muonium, PHYS REV L, 84(6), 2000, pp. 1136-1139
Citations number
31
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
84
Issue
6
Year of publication
2000
Pages
1136 - 1139
Database
ISI
SICI code
0031-9007(20000207)84:6<1136:MOT1EI>2.0.ZU;2-G
Abstract
The 1s-2s interval has been measured in the muonium (mu(+)e(-)) atom by Dop pler-free two-photon pulsed laser spectroscopy. The frequency separation of the states was determined to be 2 455 528 941.0(9.8) MHz, in good agreemen t with quantum electrodynamics. The result may be interpreted as a measurem ent of the muon-electron charge ratio as -1-1.1(2.1) x 10(-9). We expect si gnificantly higher accuracy at future high flux muon sources and from cw la ser technology.