Pair Production Constraints on Superluminal Neutrinos Revisited

TL;DR

This paper reexamines the constraints on superluminal neutrino models, clarifying which are ruled out and demonstrating that light-like superluminal neutrinos can evade previous constraints.

Contribution

It provides a detailed analysis showing that certain superluminal neutrino models, specifically light-like ones, are not constrained by earlier pair production arguments.

Findings

Light-like superluminal neutrino models evade Cohen-Glashow constraints

Clarification of which superluminal models are constrained

Reassessment of pair creation constraints on neutrinos

Abstract

We revisit the pair creation constraint on superluminal neutrinos considered by Cohen and Glashow in order to clarify which types of superluminal models are constrained. We show that a model in which the superluminal neutrino is effectively light-like can evade the Cohen-Glashow constraint.