Constraints on Lorentz invariance violation using HAWC observations above 100 TeV

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

Resultado de la investigaciónrevisión exhaustiva


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).

Idioma originalEnglish
EstadoPublished - 2019
Publicado de forma externa
Evento36th International Cosmic Ray Conference, ICRC 2019 - Madison
Duración: 24 jul. 20191 ago. 2019


Conference36th International Cosmic Ray Conference, ICRC 2019
País/TerritorioUnited States

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