Constraining Lorentz Invariance Violation using the muon content of extensive air showers measured at the Pierre Auger Observatory

  • the Pierre Auger Collaboration

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Lorentz Invariance (LI) implies that the space-time structure is the same for all observers. On the other hand, various quantum gravity theories suggest that it may be violated when approaching the Planck scale. At extreme energies, like those available in the collision of Ultra-High Energy Cosmic Rays (UHECRs) with atmosphere nuclei, one should also expect a change in the interactions due to Lorentz Invariance Violation (LIV). In this work, the effects of LIV on the development of Extensive Air Showers (EAS) have been considered. After having introduced LIV as a perturbation term in the single-particle dispersion relation, a library of simulated showers with different energies, primary particles and LIV strengths has been produced. Possible LIV has been studied using the muon content of air showers measured at the Pierre Auger Observatory. Limits on LIV parameters have been derived from a comparison between the Monte Carlo expectations and muon fluctuation measurements from the Pierre Auger Observatory.

Original languageAmerican English
Article number343
JournalProceedings of Science
Volume406
StateIndexed - 23 Nov 2022
Externally publishedYes
Event20th Hellenic School and Workshops on Elementary Particle Physics and Gravity, CORFU 2021 - Corfu, Greece
Duration: 29 Aug 20219 Oct 2021

Bibliographical note

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© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)

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