Luca Maccione, Stefano Liberati, David M. Mattingly
The OPERA collaboration has recently reported that neutrinos travel faster than light. We review the theoretical situation of constraints on violations of Lorentz invariance, focusing in particular on the compatibility between the OPERA results with both previous constraints and ones derived after OPERA. We generalize to higher order operators the recent constraint provided by the absence of neutrino energy loss, via electron-positron pair production at OPERA energies, and show that simple modified dispersion relations in vacuo within an effective field theory framework cannot explain OPERA measurements.
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http://arxiv.org/abs/1110.0783
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