期刊
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
卷 -, 期 10, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2007/10/013
关键词
high energy photons; quantum gravity phenomenology
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 modi. cation 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 the order of 10(-5) at 95% confidence level on the lepton Lorentz violation parameters.
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