Calculable inverse-seesaw neutrino masses in supersymmetry

TL;DR

This paper proposes a supersymmetric model where neutrino masses are naturally small and calculable, with potential dark matter candidates and testable predictions at colliders like the LHC.

Contribution

It introduces a minimal supergravity framework that generates neutrino masses via renormalization-group effects without arbitrary parameters.

Findings

Neutrino masses are small and calculable within the model.

The lightest supersymmetric particle could be a scalar neutrino suitable as dark matter.

The model predicts new phenomena observable at the LHC.

Abstract

We provide a scenario where naturally small and calculable neutrino masses arise from a supersymmetry breaking renormalization-group-induced vacuum expectation value. We adopt a minimal supergravity scenario without ad hoc supersymmetric mass parameters. The lightest supersymmetric particle can be an isosinglet scalar neutrino state, potentially viable as WIMP dark matter through its Higgs new boson coupling. The scenario leads to a plethora of new phenomenological implications at accelerators including the Large Hadron Collider.