Bibcode
Rebreyend, D.; Bocquet, J.-P.; Moricciani, D.; Bellini, V.; Beretta, M.; Casano, L.; Dangelo, A.; di Salvo, R.; Fantini, A.; Franco, D.; Gervino, G.; Ghio, F.; Giardina, G.; Girolami, B.; Giusa, A.; Gurzadyan, V. G.; Kashin, A.; Knyazyan, S.; Lapik, A.; Lehnert, R.; Levi Sandri, P.; Lleres, A.; Mammoliti, F.; Mandaglio, G.; Manganaro, M.; Margarian, A.; Mehrabyan, S.; Messi, R.; Nedorezov, V.; Perrin, C.; Randieri, C.; Rudnev, N.; Russo, G.; Schaerf, C.; Sperduto, M.-L.; Sutera, M.-C.; Turinge, A.; Vegna, V.
Bibliographical reference
CPT AND Lorentz Symmetry. Edited by V Alan Kostelecký (Indiana University, USA) . Published by World Scientific Publishing Co. Pte. Ltd., 2011. ISBN #9789814327688, pp. 35-39
Advertised on:
12
2011
Citations
2
Refereed citations
0
Description
Based on the high sensitivity of Compton scattering off ultra
relativistic electrons, the possibility of anisotropies in the speed of
light is investigated. The result discussed in this contribution is
based on the γ-ray beam of the ESRF's GRAAL facility (Grenoble,
France) and the search for sidereal variations in the energy of the
Compton-edge photons. The absence of oscillations yields the two-sided
limit of 1.6 × 10-14 at 95% confidence level on a
combination of photon and electron coefficients of the minimal
Standard-Model Extension (mSME). This new constraint provides an
improvement over previous bounds by one order of magnitude.