Constraints on Lorentz Invariance Violation using INTEGRAL/IBIS observations of GRB041219A

Jun, 2011
5 pages
Published in:
  • Phys.Rev.D 83 (2011) 121301
e-Print:

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Abstract: (arXiv)
One of the experimental tests of Lorentz invariance violation is to measure the helicity dependence of the propagation velocity of photons originating in distant cosmological obejcts. Using a recent determination of the distance of the Gamma-Ray Burst GRB 041219A, for which a high degree of polarization is observed in the prompt emission, we are able to improve by 4 orders of magnitude the existing constraint on Lorentz invariance violation, arising from the phenomenon of vacuum birefringence.
Note:
  • 5 pages, 3 figures, accepted for publication as a Rapid Communication in Physical Review D
  • 98.70.Rz
  • 95.55.Ka
  • 11.30.Cp
  • 95.30.Sf
  • violation: Lorentz
  • gamma ray: burst
  • helicity: dependence
  • photon: velocity
  • photon: polarization
  • gamma ray: emission