The Minimal Model of Radion Mediated Dark Matter

TL;DR

This paper proposes a minimal model where dark matter is a massive, non-interacting particle whose gravitational interactions in warped extra dimensions explain its observed abundance, avoiding conflicts with current experiments.

Contribution

It introduces a novel minimal dark matter model relying solely on gravitational interactions within warped extra dimensions.

Findings

Gravitational interactions alone can account for dark matter abundance.

The model is consistent with existing experimental constraints.

Warped extra dimensions enhance gravitational effects on dark matter.

Abstract

Based on the results from numerous astrophysics experiments, it is currently believed that the majority of matter in the Universe is in some unknown form, known as dark matter. In the past it has been common to model dark matter as a massive particle with weak interactions - either from existing Standard Model forces or from new forces - and often as past of a more complicated theory. In this article, an alternative is presented in which dark matter is in the form of a massive particle with no explicit interactions. It is demonstrated that, in the presence of strongly warped extra dimensions the inherent gravitational interactions of such a particle are sufficient to produce the observed abundance of dark matter without violating existing experimental constraints.