New constraints on Planck-scale Lorentz Violation in QED from the Crab Nebula
Astrophysics
2008-11-26 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We set constraints on O(E/M) Lorentz Violation in QED in an effective field theory framework. A major consequence of such assumptions is the modification of the dispersion relations for electrons/positrons and photons, which in turn can affect the electromagnetic output of astrophysical objects. We compare the information provided by multiwavelength observations with a full and self-consistent computation of the broad-band spectrum of the Crab Nebula. We cast constraints of order 10^{-5} at 95% confidence level on the lepton Lorentz Violation parameters.
Keywords
Cite
@article{arxiv.0707.2673,
title = {New constraints on Planck-scale Lorentz Violation in QED from the Crab Nebula},
author = {Luca Maccione and Stefano Liberati and Annalisa Celotti and John G. Kirk},
journal= {arXiv preprint arXiv:0707.2673},
year = {2008}
}
Comments
23 pages, 9 figures. v2: added comments and references, matches version accepted by JCAP