Abstract
The 1s-2s energy interval in the muonium (mu(+)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.
Original language | English |
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Pages (from-to) | 197-200 |
Number of pages | 4 |
Journal | Hyperfine Interactions |
Volume | 127 |
Issue number | 1-4 |
Publication status | Published - 2000 |
Externally published | Yes |
Event | 1st Euroconference on Atomic Physics at Accelerators (APAC 99) - MAINZ, Mainz, Germany Duration: 19-Sept-1999 → 24-Sept-1999 |
Keywords
- muonium
- 1s-2s energy interval
- Lamb shift
- high precision spectroscopy
- muon-electron mass ratio
- charge equality
- isotope shift
- 1S-2S TRANSITION FREQUENCY
- LAMB SHIFT
- HYDROGEN
- INTERVAL
- CONSTANT
- ATOMS