# Neutrino Masses from a Dark Neutrino Sector below the Electroweak Scale

## TL;DR

This paper proposes a minimal extension to the Standard Model introducing a dark neutrino sector that generates neutrino masses radiatively, predicts new heavy fermions, and suggests potential experimental tests at upcoming beam dump experiments.

## Contribution

It introduces a dark neutrino sector charged under a hidden U(1)' that explains neutrino masses radiatively with testable predictions.

## Key findings

- Neutrino masses can be generated radiatively in the model.
- The dark sector is below the electroweak scale.
- Predicted heavy fermions may be detected in future experiments.

## Abstract

We consider a minimal extension of the Standard Model which advocates a dark neutrino sector charged under a hidden $U(1)^\prime$. We show that neutrino masses can arise radiatively in this model. The observed values are compatible with a light dark sector below the electroweak scale and would imply new heavy fermions which may be testable in the next generation of beam dump searches at DUNE, NA62 and SHIP.