TY  - JOUR
AU  - Ellis, J.
AU  - Mavromatos, N. E.
AU  - Sakharov, A. S.
AU  - Sarkisyan-Grinbaum, E. K.
PY  - 2019
DA  - 2019//
TI  - Limits on neutrino Lorentz violation from multimessenger observations of TXS 0506+056
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 352
EP  - 355
VL  - 789
PB  - Elsevier Science Bv
KW  - Lorentz violation
KW  - Multimessenger
KW  - Astrophysical neutrinos
KW  - Blazar
KW  - TXS 0506+056
KW  - IceCube
AB  - The observation by the IceCube Collaboration of a high-energy (E greater than or similar to 200 TeV) neutrino from the direction of the blazar TXS 0506+056 and the coincident observations of enhanced gamma-ray emissions from the same object by MAGIC and other experiments can be used to set stringent constraints on Lorentz violation in the propagation of neutrinos that is linear in the neutrino energy: Delta v = -E/M-1, where Delta v is the deviation from the velocity of light, and M-1 is an unknown high energy scale to be constrained by experiment. Allowing for a difference in neutrino and photon propagation times of similar to 10 days, we find that M-1 greater than or similar to 3 x 10(16) GeV. This improves on previous limits on linear Lorentz violation in neutrino propagation by many orders of magnitude, and the same is true for quadratic Lorentz violation.
SN  - 0370-2693
UR  - https://arxiv.org/abs/1807.05155
UR  - https://doi.org/10.1016/j.physletb.2018.11.062
DO  - 10.1016/j.physletb.2018.11.062
LA  - English
N1  - WOS:000457165400047
ID  - Ellis_etal2019
ER  -