Constraints on neutrino speed, weak equivalence principle violation, Lorentz invariance violation, and dual lensing from the first high-energy astrophysical neutrino source TXS 0506+056

TL;DR

This paper establishes strict limits on neutrino properties and fundamental physics violations using observations from the astrophysical source TXS 0506+056, with potential for significant future improvements.

Contribution

It provides the first comprehensive constraints on neutrino speed, equivalence principle violation, Lorentz invariance violation, and dual lensing from a high-energy astrophysical neutrino source.

Findings

Constraints on neutrino speed and violations are derived from TXS 0506+056 data.

Potential for improving these constraints by orders of magnitude is discussed.

First limits established using combined neutrino and photon observations from a single source.

Abstract

We derive stringent constraints on neutrino speed, weak equivalence principle violation, Lorentz invariance violation, and dual lensing from the first high-energy astrophysical neutrino source: TXS 0506+056. Observation of neutrino (IceCube-170922A) and photons in a similar time frame and from the same direction is used to derive these limits. We describe ways in which these constraints can be further improved by orders of magnitude.