A Warped Model of Dark Matter

TL;DR

This paper introduces a warped extra-dimensional model for dark matter where mass scales are naturally generated without supersymmetry, predicting TeV-scale dark matter and GeV-scale dark photons as composite states.

Contribution

It proposes a novel warped extra-dimensional framework for dark matter and dark photons, linking them to a strong dynamics dual theory and avoiding the need for supersymmetry.

Findings

Dark matter naturally appears at the TeV scale.

Dark photons acquire GeV-scale masses via dilaton coupling.

Model addresses the gauge hierarchy problem.

Abstract

We present a model of dark matter in a warped extra dimension in which the dark sector mass scales are naturally generated without supersymmetry. The dark force, responsible for dark matter annihilating predominantly into leptons, is mediated by dark photons that naturally obtain a mass in the GeV range via a dilaton coupling. As well as solving the gauge hierarchy problem, our model predicts dark matter in the TeV range, including naturally tiny mass splittings between pseudo-Dirac states. By the AdS/CFT correspondence both the dark photon and dark matter are interpreted as composite states of the strongly-coupled dual 4d theory. Thus, in our model the dark sector emerges at the TeV scale from the dynamics of a new strong force.