Superluminal neutrinos from Lorentz-violating dimension-5 operators

TL;DR

This paper explores how Lorentz-violating dimension-5 operators could explain superluminal neutrinos observed in experiments, fitting data from OPERA, MINOS, and SN1987a.

Contribution

It introduces a model with Lorentz-violating operators in photon and neutrino sectors that can account for superluminal neutrino observations.

Findings

Operators produce a velocity curve matching OPERA data

Model fits neutrino data from MINOS and SN1987a

Provides a Lorentz-violating framework for superluminal neutrinos

Abstract

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 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.