Lorentz invariance violation from GRB221009A

TL;DR

This paper investigates the possibility of Lorentz invariance violation by analyzing high-energy photon observations from GRB 221009A, providing a quantitative method to constrain LIV parameters based on LHAASO data.

Contribution

It offers a detailed numerical analysis demonstrating how LHAASO observations can be used to constrain Lorentz invariance violation in photons.

Findings

Feasibility to set bounds on LIV from high-energy gamma-ray data

Numerical methods to analyze LIV effects in GRB photon propagation

Potential to challenge or confirm special relativity at high energies

Abstract

The Large High Altitude Air Shower Observatory~(LHAASO) reported observation of photons with energies above 10~TeV from gamma-ray burst GRB 221009A. A suggestion was proposed that this result may contradict our knowledge of special relativity~(SR) and the standard model~(SM), according to which photons of about 10~TeV from such a distant object should be severely suppressed because of the absorption by extragalactic background light. As a result, a number of mechanisms have been proposed to solve this potential puzzle, including Lorentz invariance violation~(LIV). In this work, we perform a detailed numerical calculation and show the feasibility to constrain LIV of photons from the LHAASO observation of GRB 221009A quantitatively.