Superluminal neutrinos from Lorentz-violating dimension-5 operators

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作者
C. A. G. Almeida
M. A. Anacleto
F. A. Brito
E. Passos
机构
[1] Universidade Federal de Campina Grande,Departamento de Física
[2] Universidade Federal da Paraíba,Departamento de Ciências Exatas
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Dispersion Relation; Planck Scale; Vacuum Expectation Value; Light Speed; Neutrino Sector;
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摘要
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.
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