Neutrinos superluminality and Local Lorentz Invariance

TL;DR

The paper analyzes the OPERA neutrino velocity measurement, concluding it does not significantly violate Local Lorentz Invariance, as the results are consistent with existing limits and other experiments.

Contribution

It provides an interpretation of OPERA neutrino velocity data showing no significant violation of Local Lorentz Invariance within current experimental limits.

Findings

OPERA neutrino velocity measurement is consistent with LLI

The parameter delta is within known experimental bounds

No significant LLI violation detected in the data

Abstract

The recent measurement of the neutrino velocity with the OPERA detector in the CNGS beam, on whose basis it was found that (v-c)/c = (2.48 \pm 0.28 (stat.) \pm 0.30 (sys.)) 10e-5, does not contain any significant violation of Local Lorentz Invariance (LLI), since the corresponding value of the parameter delta=(u/c)^2-1, that represents the upper limit of the breakdown of LLI, is at least three orders of magnitude higher than the known lower limit reported in literature and is compatible with the values estimated by other experiments carried out so far.