New limits on Planck scale Lorentz violation in QED

Preprint

18 December 2003

preprint
Published by arXiv in arXiv

Abstract

Constraints on possible Lorentz symmetry violation (LV) of order E/M_Planck for electrons and photons in the framework of effective field theory (EFT) are discussed. Using (i) the report of polarized MeV emission from GRB021206 and (ii) the absence of vacuum \v{C}erenkov radiation from synchrotron electrons in the Crab nebula, we improve previous bounds by 10^-10 and 10^-2 respectively. We also show that the LV parameters for positrons and electrons are different, discuss electron helicity decay, and investigate investigate how prior constraints are modified by the relations between LV parameters implied by EFT.

Keywords

RADIATION FROM SYNCHROTRON
EFFECTIVE FIELD THEORY
LORENTZ VIOLATION
QED CONSTRAINTS
SCALE LORENTZ
PLANCK SCALE
CRAB
EFT

All Related Versions

Version 1, 2003-09-25, ArXiv
Version 2, 2003-09-26, ArXiv
Version 3, 2003-10-02, ArXiv
Version 4, 2003-12-18, ArXiv
Version 5, 2004-07-29, ArXiv
Published version: Physical Review Letters, 93 (2), 021101.

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