@article{84bb8de3fd3d412a9ef41943ebefd255,
title = "Constraints on Lorentz Invariance Violation from HAWC Observations of Gamma Rays above 100 TeV",
abstract = "Because of the high energies and long distances to the sources, 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. The high altitude water Cherenkov (HAWC) observatory is among the most sensitive gamma-ray instruments currently operating above 10 TeV. HAWC finds evidence of 100 TeV photon emission from at least four astrophysical sources. These observations exclude, for the strongest of the limits set, the LIV energy scale to 2.2{\texttimes}1031 eV, over 1800 times the Planck energy and an improvement of 1 to 2 orders of magnitude over previous limits.",
author = "\{(HAWC Collaboration)\} and A. Albert and R. Alfaro and C. Alvarez and \{Angeles Camacho\}, \{J. R.\} and Arteaga-Vel{\'a}zquez, \{J. C.\} and Arunbabu, \{K. P.\} and \{Avila Rojas\}, D. and \{Ayala Solares\}, \{H. A.\} and V. Baghmanyan and E. Belmont-Moreno and Benzvi, \{S. Y.\} and C. Brisbois and Caballero-Mora, \{K. S.\} and T. Capistr{\'a}n and A. Carramina{\~n}a and S. Casanova and U. Cotti and J. Cotzomi and \{Coutin{\~o} De Le{\'o}n\}, S. and \{De La Fuente\}, E. and \{De Le{\'o}n\}, C. and Dingus, \{B. L.\} and Duvernois, \{M. A.\} and Di{\'a}z-V{\'e}lez, \{J. C.\} and Ellsworth, \{R. W.\} and K. Engel and C. Espinoza and H. Fleischhack and N. Fraija and A. Galv{\'a}n-G{\'a}mez and D. Garcia and Garci{\'a}-Gonz{\'a}lez, \{J. A.\} and F. Garfias and Gonz{\'a}lez, \{M. M.\} and Goodman, \{J. A.\} and Harding, \{J. P.\} and S. Hernandez and B. Hona and D. Huang and F. Hueyotl-Zahuantitla and P. H{\"u}ntemeyer and A. Iriarte and V. Joshi and A. Lara and Lee, \{W. H.\} and \{Le{\'o}n Vargas\}, H. and Linnemann, \{J. T.\} and Longinotti, \{A. L.\} and G. Luis-Raya and Rho, \{C. D.\}",
note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society.",
year = "2020",
month = apr,
day = "3",
doi = "10.1103/PhysRevLett.124.131101",
language = "English",
volume = "124",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",
}