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Limits on light-speed anisotropies from Compton scattering of high-energy electrons

Abstract : The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge photons at the ESRF's GRAAL facility constrains such anisotropiesrepresenting the first non-threshold collision-kinematics study of Lorentz violation. When interpreted within the minimal Standard-Model Extension,this result yields the two-sided limit of 1.6 x 10^{-14} at 95 % confidence level on a combination of the parity-violating photon and electron coefficients
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Submitted on : Monday, May 31, 2010 - 1:27:51 PM
Last modification on : Thursday, November 19, 2020 - 12:58:54 PM

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J.P. Bocquet, D. Moricciani, V. Bellini, M. Beretta, L. Casano, et al.. Limits on light-speed anisotropies from Compton scattering of high-energy electrons. Physical Review Letters, American Physical Society, 2010, 104, pp.241601. ⟨10.1103/PhysRevLett.104.241601⟩. ⟨in2p3-00487870⟩

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