On the spontaneous breaking of Lorentz invariance
arXiv:gr-qc/0001097 · doi:10.1016/S0920-5632(00)00753-2
Abstract
We show that estimates of the Lorentz symmetry violation extracted from ultra-high energy cosmic rays beyond the GZK cut-off set bounds on the parameters of a Lorentz-violating extension of the Standard Model. Moreover, we argue that correlated measurements of the difference in the arrival time of gamma-ray photons and neutrinos emitted from Active Galactic Nuclei or Gamma-Ray Bursts may provide a signature for a possible violation of the Lorentz symmetry. We find that this time delay is energy independent, but that it has a dependence on the chirality of the particles involved.
9 pages, Latex (requires mprocl.sty file available at http://www.aei-potsdam.mpg.de/~cavaglia/qg99/proceedings.html). Invited talk delivered at the Third Meeting on Constrained Dynamics and Quantum Gravity, Villasimius, Sardinia, September 1999
References in corpus (4)
- Potential Sensitivity of Gamma-Ray Burster Observations to Wave Dispersion in Vacuo
- Extension of the Cosmic-Ray Energy Spectrum Beyond the Predicted Greisen-Zatsepin-Kuz'min Cutoff
- CPT and Lorentz Tests in Hydrogen and Antihydrogen
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- Lorentz invariance violation in top-down scenarios of ultrahigh energy cosmic ray creation
- CP violation in neutrino oscillations and L/E flatness of the e-like event ratio at Super-Kamiokande
- Effect of bulk Lorentz violation on anisotropic brane cosmologies