Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-12-02
AIP Conf.Proc.1223:192-206,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
Text of Invited Talk at the SCINEGHE 2009 Workshop: Gamma-ray Physics in the LHC Era, to be published in the proceedings, revi
Scientific paper
10.1063/1.3395985
The topic of Lorentz invariance violation is a fundamental question in physics that has taken on particular interest in theoretical explorations of quantum gravity scenarios. I discuss various gamma-ray observations that give limits on predicted potential effects of Lorentz invariance violation. Among these are spectral data from ground based observations of the multi-TeV gamma-rays from nearby AGN, INTEGRAL detections of polarized soft gamma-rays from the vicinity of the Crab pulsar, Fermi Gamma Ray Space Telescope studies of photon propagation timing from gamma-ray bursts, and Auger data on the spectrum of ultrahigh energy cosmic rays. These results can be used to seriously constrain or rule out some models involving Planck scale physics. Possible implications of these limits for quantum gravity and Planck scale physics will be discussed.
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