Particle-Accelerator Constraints on Isotropic Modifications of the Speed of Light

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Particle-Accelerator Constraints on Isotropic Modifications of the Speed of Light

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Title: Particle-Accelerator Constraints on Isotropic Modifications of the Speed of Light
Author: Walsworth, Ronald L.; Hohensee, Michael A.; Lehnert, Ralf; Phillips, David Forrest

Note: Order does not necessarily reflect citation order of authors.

Citation: Hohensee, Michael A., Ralf Lehnert, David Forrest Phillips, and Ronald L. Walsworth. 2009. Particle-accelerator constraints on isotropic modifications of the speed of light. Physical Review Letters 102(170402).
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Abstract: The absence of vacuum Cherenkov radiation for 104.5 GeV electrons and positrons at LEP combined with the observed stability of 300 GeV photons at the Tevatron constrains deviations of the speed of light relative to the maximal attainable speed of electrons. Within the Standard-Model Extension (SME), the limit $-5.8\times10^{-12} \leq \tilde{\kappa}_{\rm tr}-{4/3}c_e^{00} \leq 1.2\times10^{-11}$ is extracted, which sharpens previous bounds by more than 3 orders of magnitude. The potential for further refinements of this limit with terrestrial experiments and astrophysical observations is discussed.
Published Version: doi:10.1103/PhysRevLett.102.170402
Other Sources: http://arxiv.org/abs/0904.2031v1
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:11077569
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