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Researchers Propose Tests for Quantum Gravity in Cosmic Rays

10/17/2025

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Summary

Story summary

Manuel Ettengruber and Gonzalo Herrera lead a study proposing tests to observe quantum gravity effects in ultra-high-energy cosmic ray collisions within active galactic nuclei.
The researchers aim to probe energy scales up to the PeV range to observe these effects.
They analyze neutrino and gamma-ray emissions, including Hawking evaporation and graviton propagation.
The work applies multi-messenger astronomy, investigates AGN emission mechanisms, and considers binary supermassive black holes as gravitational-wave sources.

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Story summary

Manuel Ettengruber and Gonzalo Herrera lead a study proposing tests to observe quantum gravity effects in ultra-high-energy cosmic ray collisions within active galactic nuclei.
The researchers aim to probe energy scales up to the PeV range to observe these effects.
They analyze neutrino and gamma-ray emissions, including Hawking evaporation and graviton propagation.
The work applies multi-messenger astronomy, investigates AGN emission mechanisms, and considers binary supermassive black holes as gravitational-wave sources.