{
  "id": "2402.06009",
  "version": "v2",
  "published": "2024-02-08T19:11:25.000Z",
  "updated": "2024-08-25T22:50:18.000Z",
  "title": "Stringent Tests of Lorentz Invariance Violation from LHAASO Observations of GRB 221009A",
  "authors": [
    "The LHAASO collaboration"
  ],
  "comment": "7pages, 5 figures",
  "doi": "10.1103/PhysRevLett.133.071501",
  "categories": [
    "astro-ph.HE",
    "gr-qc",
    "hep-ph",
    "hep-th"
  ],
  "abstract": "Very recently, the Large High Altitude Air Shower Observatory (LHAASO) reported the observation of the very early TeV afterglow of the brightest-of-all-time GRB 221009A, recording the highest photon statistics in the TeV band ever from a gamma-ray burst. We use this unique observation to place stringent constraints on an energy dependence of the speed of light in vacuum, a manifestation of Lorentz invariance violation (LIV) predicted by some quantum gravity (QG) theories. Our results show that the 95% confidence level lower limits on the QG energy scales are $E_{\\mathrm{QG},1}>10$ times of the Planck energy $E_\\mathrm{Pl}$ for the linear, and $E_{\\mathrm{QG},2}>6\\times10^{-8}E_\\mathrm{Pl}$ for the quadratic LIV effects, respectively. Our limits on the quadratic LIV case improve previous best bounds by factors of 5--7.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2024-08-25T22:50:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "lorentz invariance violation",
      "grb 221009a",
      "lhaaso observations",
      "stringent tests",
      "large high altitude air shower"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}