MACRO constraints on violation of Lorentz invariance

  title={MACRO constraints on violation of Lorentz invariance},
  author={M. Cozzi},
The energy spectrum of neutrino-induced upward-going muons in MACRO has been analysed in terms of relativity principles violating effects, keeping standard mass-induced atmospheric neutrino oscillations as the dominant source of ν μ → ν τ transitions. The data disfavor these exotic possibilities even at a sub-dominant level, and stringent 90% C.L. limits are placed on the Lorentz invariance violation parameter | Δ v | 6 × 10 −24 at sin 2 θ v = 0 and | Δ v | 2.5 ÷ 5 × 10 −26 at sin 2 θ v = ± 1… Expand

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