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RESEARCH PRODUCT
Limits on neutrino Lorentz violation from multimessenger observations of TXS 0506+056
Edward K. Sarkisyan-grinbaumEdward K. Sarkisyan-grinbaumAlexander S. SakharovAlexander S. SakharovJohn EllisJohn EllisNikolaos MavromatosNikolaos Mavromatossubject
High Energy Physics - TheoryNuclear and High Energy PhysicsHigh energyParticle physicsAstrophysics and AstronomyCosmology and Nongalactic Astrophysics (astro-ph.CO)Lorentz transformationgr-qcAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)01 natural sciencesComputer Science::Digital LibrariesGeneral Relativity and Quantum CosmologyIceCubesymbols.namesakeHigh Energy Physics - Phenomenology (hep-ph)Coincident0103 physical sciences010306 general physicsBlazarParticle Physics - PhenomenologyHigh Energy Astrophysical Phenomena (astro-ph.HE)Physicsastro-ph.HEMultimessenger010308 nuclear & particles physicsGeneral Relativity and Cosmologyhep-thHigh Energy Physics::PhenomenologyLorentz violationGamma rayhep-phlcsh:QC1-999High Energy Physics - PhenomenologyPhoton propagationHigh Energy Physics - Theory (hep-th)Astrophysical neutrinosVelocity of lightsymbolsastro-ph.COHigh Energy Physics::ExperimentNeutrinoTXS 0506+056Astrophysics - High Energy Astrophysical PhenomenaParticle Physics - Theorylcsh:PhysicsBlazarsAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
The observation by the IceCube Collaboration of a high-energy ($E \gtrsim 200$ 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 $\sim 10$ days, we find that $M_1 \gtrsim 3 \times 10^{16}$ 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-01 | Physics Letters |