# The Warped Dark Sector

## TL;DR

This paper explores warped extra-dimensional models that naturally hide parts of the dark sector at high energies, leading to novel phenomenological signatures across laboratory and cosmological scales.

## Contribution

It introduces a new mechanism in warped braneworld scenarios that dynamically suppresses the dark sector at high energies, impacting dark matter and gravity phenomenology.

## Key findings

- Presence of long-range forces with non-integer behavior
- Detection of periodic signals at colliders
- Observation of soft bomb events and dark phase transitions

## Abstract

Five-dimensional braneworld constructions in anti-de Sitter space naturally lead to dark sector scenarios in which parts of the dark sector vanish at high 4d momentum or temperature. In the language of modified gravity, such feature implies a new mechanism for hiding light scalars, as well as the possibility of UV-completing chameleon-like effective theories. In the language of dark matter phenomenology, the high-energy behaviour of the mediator sector changes dark matter observational complementarity. A multitude of signatures---including exotic ones---are present from laboratory to cosmologic scales, including long-range forces with non-integer behaviour, periodic signals at colliders, `soft bombs' events well-known from conformal theories, as well as a dark phase transition and a typically small amount of dark radiation.