Superluminal neutrinos from Lorentz-violating dimension-5 operators
Departamento de Física, Universidade Federal de Campina Grande, Caixa Postal 10071, 58109-970, Campina Grande, Paraíba, Brazil
2 Departamento de Ciências Exatas, Universidade Federal da Paraíba, 58297-000, Rio Tinto, Paraíba, Brazil
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Revised: 13 December 2011
Published online: 3 January 2012
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.
© Springer-Verlag / Società Italiana di Fisica, 2012