We report the results found in Phys. Lett. B 820 (2021) 136595, where we explore the phenomenological viability of scenarios, suggested by different approaches to quantum spacetime, in which quantum-gravity effects in the propagation of particles are triggered by spacetime curvature/expansion.
We rely on a toy model of curvature-induced Lorentz violation for a preliminary exploration, and we find that, differently from what commonly believed, the double suppression due to Planck-length and spacetime curvature is compensated by the high energies and the long (cosmological) distances traveled of the gamma-ray-burst photons.
Volume 406 -
Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2021) -
Workshop on Quantum Gravity Phenomenology in the Multi-Messenger Approach
Testing curvature-induced in-vacuo dispersion with gamma-ray-bursts
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Published on:
November 23, 2022
Abstract
DOI: https://doi.org/10.22323/1.406.0336
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.