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Comments on ``Improved limit on quantum-spacetime modifications of Lorentz symmetry from observations of gamma-ray blazars"

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arxiv gr-qc/0303001 v1 pith:KP25HPZU submitted 2003-03-01 gr-qc astro-phhep-phhep-th

Comments on ``Improved limit on quantum-spacetime modifications of Lorentz symmetry from observations of gamma-ray blazars"

T. Jacobson , S. Liberati , D. Mattingly This is my paper
classification gr-qc astro-phhep-phhep-th
keywords lorentzaddressamelino-cameliaanalysesanalysisannihilationblazarscoming
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We address several criticisms by Amelino-Camelia of our recent analyses of two observational constraints on Lorentz violation at order E/M_{Planck}. In particular, we emphasize the role of effective field theory in our analysis of synchrotron radiation, and we strengthen the justification for the constraint coming from photon annihilation.

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