On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. Based on a set of assumptions on the possible intrinsic spectral and temporal evolution, we obtain competitive lower limits on the quadratic leading order of speed of light modification.

Acciari V. A., Ansoldi S., Antonelli L. A., Arbet Engels A., Baack D., Babic A., et al. (2020). Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C. PHYSICAL REVIEW LETTERS, 125(2), 021301 [10.1103/PhysRevLett.125.021301].

Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C

Mallamaci M.;
2020-06-09

Abstract

On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. Based on a set of assumptions on the possible intrinsic spectral and temporal evolution, we obtain competitive lower limits on the quadratic leading order of speed of light modification.
9-giu-2020
Settore FIS/01 - Fisica Sperimentale
Acciari V. A., Ansoldi S., Antonelli L. A., Arbet Engels A., Baack D., Babic A., et al. (2020). Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C. PHYSICAL REVIEW LETTERS, 125(2), 021301 [10.1103/PhysRevLett.125.021301].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/640458
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