Limits on light-speed anisotropies from Compton scattering of high-energy electrons
High Energy Physics - Experiment
2014-11-21 v2 High Energy Physics - Phenomenology
Atomic Physics
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 anisotropies representing 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 kappa_{o+} and c. This new constraint provides an improvement over previous bounds by one order of magnitude.
Keywords
Cite
@article{arxiv.1005.5230,
title = {Limits on light-speed anisotropies from Compton scattering of high-energy electrons},
author = {J. -P. Bocquet and D. Moricciani and V. Bellini and M. Beretta and L. Casano and A. D'Angelo and R. Di Salvo and A. Fantini and D. Franco and G. Gervino and F. Ghio and G. Giardina and B. Girolami and A. Giusa and V. G. Gurzadyan and A. Kashin and S. Knyazyan and A. Lapik and R. Lehnert and P. Levi Sandri and A. Lleres and F. Mammoliti and G. Mandaglio and M. Manganaro and A. Margarian and S. Mehrabyan and R. Messi and V. Nedorezov and C. Perrin and C. Randieri and D. Rebreyend and N. Rudnev and G. Russo and C. Schaerf and M. L. Sperduto and M. C. Sutera and A. Turinge and V. Vegna},
journal= {arXiv preprint arXiv:1005.5230},
year = {2014}
}
Comments
4 pages, 4 figures