Three Layers of Neutrinos

TL;DR

This paper discusses a class of models with spontaneous R-parity breaking based on gauged B-L, predicting a unique neutrino spectrum with three layers including heavy sterile, massive active, and near massless neutrinos.

Contribution

It introduces a novel neutrino spectrum structure in models with spontaneous R-parity breaking and gauged B-L symmetry.

Findings

Predicts three layers of neutrinos: heavy sterile, two massive active, and near massless neutrinos.

Highlights the peculiar neutrino spectrum in these models.

Provides theoretical insight into neutrino mass hierarchy in this framework.

Abstract

In this letter we point out that in a class of models for spontaneous R-parity breaking based on gauged B-L, the spectrum for neutrinos is quite peculiar. We find that those models generally predict three layers of neutrinos: one heavy sterile neutrino, two massive active neutrinos, and three near massless (one active and two sterile) neutrinos.