Bound on Lorentz and $CPT$ violating boost effects for the neutron
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Date
2004
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American Physical Society
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Abstract
A search for an annual variation of a daily sidereal modulation of the frequency difference between colocated $^{129}\text{Xe}$ and $^{3}\text{He}$ Zeeman masers sets a stringent limit on boost-dependent Lorentz and $CPT$ violation involving the neutron, consistent with no effect at the level of 150 nHz. In the framework of the general standard-model extension, the present result provides the first clean test for the fermion sector of the symmetry of spacetime under boost transformations at a level of $10^{−27}$ GeV.
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Canè, F., Bear, D., Phillips, D. F., Rosen, M. S., Smallwood, C. L., Stoner, R. E., . . . Kostelecký, V. A. (2004). Bound on Lorentz and $CPT$ violating boost effects for the neutron. Physical Review Letters, 93(23), 230801. http://dx.doi.org/10.1103/PhysRevLett.93.230801
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© 2004 American Physical Society.
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Article