Observational Signatures of QGEFT: Empirical Validation Against Fermi-LAT Gamma-Ray Bursts

The present QGEFT implementation produces a redshift-dependent Lorentz-violation curve that remains below all five conservative Fermi-LAT GRB upper limits tested here (`excluded = 0/5`). The strongest current benchmark is GRB090510A, for which the predicted delay remains below the observed upper bound by a factor of about `6.83`, while the early-universe branch predicts a distinctive high-redshift plateau produced by `gc \to 1` and `\xi_{QGEFT} \to 0`.

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-05-16
DOI
https://doi.org/10.5281/zenodo.20226667
Primary Topic
Gamma-ray bursts and supernovae
Type
preprint
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preprint

Observational Signatures of QGEFT: Empirical Validation Against Fermi-LAT Gamma-Ray Bursts

Yaniv Cohen
Zenodo (CERN European Organization for Nuclear Research)
Gamma-ray bursts and supernovae
preprint

Observational Signatures of QGEFT: Empirical Validation Against Fermi-LAT Gamma-Ray Bursts

Yaniv Cohen
preprint en

Abstract

The present QGEFT implementation produces a redshift-dependent Lorentz-violation curve that remains below all five conservative Fermi-LAT GRB upper limits tested here (`excluded = 0/5`). The strongest current benchmark is GRB090510A, for which the predicted delay remains below the observed upper bound by a factor of about `6.83`, while the early-universe branch predicts a distinctive high-redshift plateau produced by `gc \to 1` and `\xi_{QGEFT} \to 0`.

Zenodo (CERN European Organization for Nuclear Research)
Gamma-ray bursts and supernovae
DOIOpen Access PDFOpenAlex
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Observational Signatures of QGEFT: Empirical Validation Against Fermi-LAT Gamma-Ray Bursts — Yaniv Cohen · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS