# Linking axionlike dark matter to neutrino masses

## TL;DR

This paper proposes a framework connecting axionlike particles to neutrino masses via the inverse seesaw mechanism, offering models that explain dark matter relic density and are testable by upcoming experiments.

## Contribution

It introduces minimal inverse seesaw models where gravity-induced operators generate neutrino and dark matter masses involving ALPs, with some models allowing ALPs and sterile neutrinos as dark matter.

## Key findings

- Gravity-stable models match observed dark matter density.
- Models are consistent with neutrino and ALP phenomenology.
- Some ALP parameters are within reach of future experiments.

## Abstract

We present a framework linking axionlike particles (ALPs) to neutrino masses through the minimal inverse seesaw (ISS) mechanism in order to explain the dark matter (DM) puzzle. Specifically, we explore three minimal ISS cases where mass scales are generated through gravity-induced operators involving a scalar field hosting ALPs. In all of these cases, we find gravity-stable models providing the observed DM relic density and, simultaneously, consistent with the phenomenology of neutrinos and ALPs. Remarkably, in one of the ISS cases, the DM can be made of ALPs and sterile neutrinos. Furthermore, other considered ISS cases have ALPs with parameters inside regions to be explored by proposed ALPs experiments.