Test of CPT and Lorentz Invariance from Muonium Spectroscopy

V. W. Hughes, M. Grosse Perdekamp, D. Kawall, W. Liu, K. Jungmann, and G. zu Putlitz
Phys. Rev. Lett. 87, 111804 – Published 23 August 2001
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Abstract

Following a suggestion from Kostelecký 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 δν12 and δν34 to ν12 and ν34, 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 ν12 and ν34 at the Earth’s sidereal frequency. No time dependence was found in ν12 or ν34 at the level of 20 Hz, limiting the size of some CPT and Lorentz-violating parameters at the level of 2×1023GeV.

  • Received 4 May 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.111804

©2001 American Physical Society

Authors & Affiliations

V. W. Hughes, M. Grosse Perdekamp*, D. Kawall, and W. Liu

  • Yale University, Department of Physics, New Haven, Connecticut 06520-8121

K. Jungmann and G. zu Putlitz

  • Universität Heidelberg, Physikalisches Institut, D-69120 Heidelberg, Germany

  • *Current address: Riken-BNL Research Center, Upton, New York 11973.
  • Current address: KVI, Zernikelaan 25, NI-9747 AA, Groningen, The Netherlands.

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Vol. 87, Iss. 11 — 10 September 2001

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