Table 1 A comparison of various limits on δ set with the same method of using 10 decay lengths

From: KM3NeT constraint on Lorentz-violating superluminal neutrino velocity

Method

Energy scale

Limit on δ

IceCube TXS 0506+056

~290 TeV

2.4 × 10−18

Stecker et al. (ref. 21)

60TeV-2 PeV

2 × 5.2 × 10−21

KM3-230213A (conservative)

~220 PeV

1.8 × 10−21

KM3-230213A (extragalactic)

~220 PeV

4.2 × 10−22

  1. The exception is the limit set by ref. 21, which is detailed in that respective work; the factor of 2 accounts for the difference in the definitions of δ. Limits here are obtained assuming that the electron is not superluminal. For context, we have also included the energy scale used to set these limits.