Constraining neutrinoless double beta decay

TL;DR

This paper explores how discrete flavor-symmetry models impose constraints on neutrino masses, which in turn set bounds on the potential observability of neutrinoless double beta decay, aiding in understanding neutrino properties.

Contribution

It demonstrates how flavor-symmetry models can predict specific neutrino mass sum-rules that constrain the absolute neutrino mass scale and the neutrinoless double beta decay amplitude.

Findings

Most models predict a lower bound on neutrinoless double beta decay amplitude.

Constraints on neutrino mass scale are derived from flavor-symmetry-based sum-rules.

Theoretical framework links neutrino mass models to experimental decay searches.

Abstract

A class of discrete flavor-symmetry-based models predicts constrained neutrino mass matrix schemes that lead to specific neutrino mass sum-rules (MSR). We show how these theories may constrain the absolute scale of neutrino mass, leading in most of the cases to a lower bound on the neutrinoless double beta decay effective amplitude.