A theoretical diagnosis on light speed anisotropy from GRAAL experiment

doi:10.1016/j.astropartphys.2012.04.015

Astroparticle Physics

Volume 36, Issue 1, August 2012, Pages 37-41

https://doi.org/10.1016/j.astropartphys.2012.04.015 Get rights and content

Abstract

The light speed anisotropy, i.e., the variation of the light speed with respect to the direction in an “absolute” reference frame, is a profound issue in physics. The one-way experiment, performed at the GRAAL facility of the European Synchrotron Radiation Facility (ESRF) in Grenoble, reported results on the light speed anisotropy by Compton scattering of laser photons on high-energy electrons. So far, most articles concerned with the GRAAL data have established only the upper bounds on the anisotropy parameters based on available theories. We use a new theory of the Lorentz invariance violation to analyse the available GRAAL data and obtain the stringent upper limit of the order $2.4 \times 10^{- 14}$ on the Lorentz violation parameters. In the meantime, we also can reproduce the allowed light speed anisotropy appearing in the azimuthal distribution of the GRAAL experimental data, and find that the best-fit parameters are compatible with the competitive upper bounds.

Highlights

► A new model of Lorentz invariance violation is applied for phenomenological analysis. ► A possible anisotropy of the light speed in the GRAAL data is suggested from model analysis. ► A stringent upper bound on the Lorentz violation parameters for photons is obtained from data.

Section snippets

Acknowledgements

This work is partially supported by National Natural Science Foundation of China (Grants Nos. 11021092, 10975003, 11035003, and 11120101004) and by the Research Fund for the Doctoral Program of Higher Education of China.

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A theoretical diagnosis on light speed anisotropy from GRAAL experiment

Abstract

Highlights

Section snippets

Acknowledgements

Astropart. Phys.

Am. J. Sci.

Mod. Phys. Lett. A

Il Nuovo Cimento B

Phys. Rev. Lett.

Mod. Phys. Lett. A

Chin. Phys. C

Phys. Scr.

Lect. Notes Phys.

Living Rev. Rel.

Found. Phys.

Int. J. Mod. Phys. A