Constraints on Lorentz invariance violation using HAWC observations above 100 TeV

HAWC Collaboration, H. Martínez-Huerta*, S. Marinelli, J. T. Linnemann, J. Lundeen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Due to the high energies and long distances involved, astrophysical observations provide a unique opportunity to test possible signatures of Lorentz Invariance Violation (LIV). Superluminal LIV enables the decay of photons at high energy over relatively short distances, giving astrophysical spectra which have a hard cutoff above this energy. The High Altitude Water Cherenkov (HAWC) observatory is the most sensitive currently-operating gamma-ray observatory in the world above 10 TeV. Together with the recent development of an energy-reconstruction algorithm for HAWC using an artificial neural network, HAWC can make detailed measurements of gamma-ray energies above 100 TeV. With these observations, HAWC can limit the LIV energy scale greater than 1031 eV, over 800 times the Planck energy scale. This limit on LIV is over 60 times more constraining than the best previous value for ELIV(1).

Original languageEnglish
Title of host publicationConstraints on Lorentz invariance violation using HAWC observations above 100 TeV
Volume358
Publication statusPublished - 2019
Externally publishedYes
Event36th International Cosmic Ray Conference, ICRC 2019 - Madison, United States
Duration: 24 Jul 20191 Aug 2019

Publication series

NameProceedings of Science
PublisherSissa Medialab Srl

Conference

Conference36th International Cosmic Ray Conference, ICRC 2019
Country/TerritoryUnited States
CityMadison
Period24/7/191/8/19

Bibliographical note

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons

All Science Journal Classification (ASJC) codes

  • General

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