{"paper":{"title":"Limits on light-speed anisotropies from Compton scattering of high-energy electrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","physics.atom-ph"],"primary_cat":"hep-ex","authors_text":"A. D'Angelo, A. Fantini, A. Giusa, A. Kashin, A. Lapik, A. Lleres, A. Margarian, A. Turinge, B. Girolami, C. Perrin, C. Randieri, C. Schaerf, D. Franco, D. Moricciani, D. Rebreyend, F. Ghio, F. Mammoliti, G. Gervino, G. Giardina, G. Mandaglio, G. Russo, J.-P. Bocquet, L. Casano, M. Beretta, M.C. Sutera, M.L. Sperduto, M. Manganaro, N. Rudnev, P. Levi Sandri, R. Di Salvo, R. Lehnert, R. Messi, S. Knyazyan, S. Mehrabyan, V. Bellini, V.G. Gurzadyan, V. Nedorezov, V. Vegna","submitted_at":"2010-05-28T07:41:34Z","abstract_excerpt":"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 imp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.5230","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}