6 papers
Constraints on birefringence-free photon theory within standard-model extension
Zhi Xiao, Hanlin Song, Bo-Qiang Ma
Constraints on the birefringence-free subset of Lorentz-violating (LV) operators are derived using 14 GRB photons in the GeV-band. These constraints target the isotropic $c_{(I)00}…
Carpet-3 300 TeV Photon Event as an Evidence for Lorentz Violation
Hanlin Song, Bo-Qiang Ma
The detection by the Carpet-3 Group of a 300 TeV photon, observed 4536 seconds after the prompt emission of the historic gamma-ray burst GRB 221009A, provides unprecedented opportu…
Monte Carlo simulation of GRB data to test Lorentz-invariance violation
Hanlin Song, Bo-Qiang Ma
Lorentz-invariance violation (LV) at energy scales approaching the Planck regime serves as a critical probe for understanding quantum gravity phenomenology. Astrophysical observati…
Examining Lorentz invariance violation with three remarkable GRB photons
Hanlin Song, Bo-Qiang Ma
Lorentz invariance violation in photons can be quantified by measuring the difference in arrival times between high- and low-energy photons originating from gamma-ray bursts (GRBs)…
Lorentz Invariance Violation from Gamma-Ray Bursts
Hanlin Song, Bo-Qiang Ma
Lorentz invariance violation (LV) is examined through the time delay between high-energy and low-energy photons in gamma-ray bursts (GRBs). Previous studies determined the LV energ…
Direct evidence for preburst stage of gamma-ray burst from GRB 221009A data
Qing Liu, Hanlin Song, Bo-Qiang Ma
Previous research on Lorentz invariance violation in photons from gamma-ray bursts (GRBs) suggested a scenario where multi-GeV photons could be emitted before lower-energy photons…