Superluminal neutrinos from Lorentz-violating dimension-5 operators
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- Almeida, C.A.G., Anacleto, M.A., Brito, F.A. et al. Eur. Phys. J. C (2012) 72: 1855. doi:10.1140/epjc/s10052-011-1855-3
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We consider Lorentz- and CPT-violating dimension-5 operators to address the issue of superluminal neutrinos recently pointed out in OPERA experiments. We assume these operators in the photon and neutrino sectors to be coupled to Lorentz-violating backgrounds in a preferred frame defined by a time-like direction. We show that such operators can produce a curve with OPERA’s slope that fits OPERA, MINOS and supernova SN1987a data.