Bibcode
Bocquet, J.-P.; Moricciani, D.; Bellini, V.; Beretta, M.; Casano, L.; D'Angelo, 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.; Rebreyend, D.; Rudnev, N.; Russo, G.; Schaerf, C.; Sperduto, M. L.; Sutera, M. C.; Turinge, A.; Vegna, V.
Bibliographical reference
Physical Review Letters, vol. 104, Issue 24, id. 241601
Advertised on:
6
2010
Journal
Citations
65
Refereed citations
42
Description
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 European
Synchrotron Radiation Facility’s GRAAL facility constrains such
anisotropies representing the first nonthreshold collision-kinematics
study of Lorentz violation. When interpreted within the minimal
standard-model extension, this result yields the two-sided limit of
1.6×10-14 at 95% confidence level on a combination of
the parity-violating photon and electron coefficients
(κ˜o+)YZ,
(κ˜o+)ZX, cTX, and
cTY. This new constraint provides an improvement over
previous bounds by 1 order of magnitude.