Test of CPT and Lorentz Invariance from Muonium Spectroscopy
Following a suggestion from Kostelecky et al., we evaluated a test of CPT and Lorentz invariance from the microwave spectroscopy of muonium. Hamiltonian terms beyond the standard model violating CPT and Lorentz invariance would contribute frequency shifts {delta}{nu}{sub 12} and {delta}{nu}{sub 34} to {nu}{sub 12} and {nu}{sub 34} , the two transitions involving muon spin flip, which were precisely measured in ground state muonium in a strong magnetic field of 1.7 T. The shifts would be indicated by anticorrelated oscillations in {nu}{sub 12} and {nu}{sub 34} at the Earth's sidereal frequency. No time dependence was found in {nu}{sub 12} or {nu}{sub 34} at the level of 20 Hz, limiting the size of some CPT and Lorentz-violating parameters at the level of 2 x 10{sup -23} GeV .
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40277567
- Journal Information:
- Physical Review Letters, Vol. 87, Issue 11; Other Information: DOI: 10.1103/PhysRevLett.87.111804; Othernumber: PRLTAO000087000011111804000001; 041136PRL; PBD: 10 Sep 2001; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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