Lorentz Violation of Cosmic Photons from a Phenomenological Viewpoint

24 Aug 2021, 15:10
20m
ZR2

ZR2

Dark Matter and Astroparticle Physics Dark Matter and Astroparticle Physics

Speaker

Bo-Qiang Ma (Peking University)

Description

Cosmic photons from astrophysical sources are ideal for investigating the Lorentz symmetry violation (LV). A series of studies on high energy gamma-ray burst (GRB) photons suggest a light speed variation with linear energy dependence at the Lorentz violation scale of $3.6*10^{17}$ GeV, with subluminal propagation of high energy photons in cosmological space. Constraints on Lorentz violation from recent observation of PeV scale photons from LHAASO collaboration are also discussed.

Primary author

Bo-Qiang Ma (Peking University)

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