Dark Matter and The Seesaw Scale

TL;DR

This paper explores how cosmological dark matter constraints can set an upper limit on the seesaw scale, linking neutrino mass origins with dark matter properties and collider signatures.

Contribution

It introduces a simple model connecting the seesaw scale to dark matter relic density, deriving an upper bound on lepton number violation scale from cosmological data.

Findings

Upper bound of multi-TeV on the seesaw scale

Predictions for dark matter detection experiments

Potential signatures at the Large Hadron Collider

Abstract

We discuss the possibility to find an upper bound on the seesaw scale using the cosmological bound on the cold dark matter relic density. We investigate a simple relation between the origin of neutrino masses and the properties of a dark matter candidate in a simple theory where the new symmetry breaking scale defines the seesaw scale. Imposing the cosmological bounds, we find an upper bound of order multi-TeV on the lepton number violation scale. We investigate the predictions for direct and indirect detection dark matter experiments, and the possible signatures at the Large Hadron Collider.