Radiative neutrino masses and the Cohen-Kaplan-Nelson bound

TL;DR

This paper investigates how gravity-induced UV and IR cutoffs affect radiative neutrino mass models, revealing significant constraints on their parameter space due to limited quantum field theory validity.

Contribution

It applies the Cohen-Kaplan-Nelson bound to radiative neutrino mass models, highlighting the impact of gravity-induced cutoffs on model parameters.

Findings

Gravity implies UV and IR cutoffs affecting loop integrals.

Limited validity of quantum field theory constrains neutrino mass models.

Significant parameter space restrictions for radiative neutrino mass models.

Abstract

Recently, an increasing interest in UV/IR mixing phenomena has drawn attention to the range of validity of standard quantum field theory. Here we explore the consequences of such a limited range of validity in the context of radiative models for neutrino mass generation. We adopt an argument first published by Cohen, Kaplan and Nelson that gravity implies both UV and IR cutoffs, apply it to the loop integrals describing radiative corrections, and demonstrate that this effect has significant consequences for the parameter space of radiative neutrino mass models.