A model of superluminal neutrinos

TL;DR

This paper proposes a theoretical model where sterile neutrinos are superluminal, and active neutrinos appear superluminal through mixing, addressing the OPERA experiment's tentative superluminal neutrino observations.

Contribution

It introduces a novel model of neutrino oscillations with superluminal sterile neutrinos, exploring implications for superluminal active neutrinos and related challenges.

Findings

Sterile neutrinos can be superluminal in the model.

Active neutrinos appear superluminal due to mixing.

The model discusses implications for explaining OPERA results.

Abstract

Motivated by the tentative observation of superluminal neutrinos by the OPERA experiment, we present a model of active-sterile neutrino oscillations in which sterile neutrinos are superluminal and active neutrinos appear superluminal by virtue of neutrino mixing. The model demonstrates some interesting possibilities and challenges that apply to a large class of models aiming to explain the OPERA result.