Nearly Mass-Degenerate Majorana Neutrinos: Double Beta Decay and Neutrino Oscillations

TL;DR

This paper explores how radiative mass splitting in nearly mass-degenerate Majorana neutrinos impacts neutrinoless double beta decay and neutrino oscillations, with implications for understanding neutrino properties.

Contribution

It introduces the significance of radiative splitting in nearly degenerate Majorana neutrinos for neutrinoless double beta decay and oscillation phenomena.

Findings

Radiative splitting can significantly affect decay and oscillation signals.

Implications for neutrino mass hierarchy and Majorana nature.

Relevance to models with seesaw mechanism or scalar triplet.

Abstract

Assuming equal tree-level Majorana masses for the standard-model neutrinos, either from the canonical seesaw mechanism or from a heavy scalar triplet, I discuss how their radiative splitting may be relevant to neutrinoless double beta decay and neutrino oscillations.