# The DESY axion search program

## TL;DR

The DESY axion search program involves multiple experiments aiming to detect feebly interacting particles that could explain dark matter and other open questions in physics beyond the Standard Model.

## Contribution

This paper introduces a coordinated set of non-accelerator experiments at DESY targeting FIPs as dark matter candidates, expanding the search beyond traditional methods.

## Key findings

- ALPS II, BabyIAXO, and MADMAX are operational or planned experiments.
- These experiments target different FIP parameter spaces related to dark matter.
- The program enhances the global effort to detect axions and other FIPs.

## Abstract

Feebly Interacting Particles (FIPs) might offer the solution to (some of) the open questions beyond the Standard Models of particle physics and cosmology. At DESY in Hamburg, three non-accelerator-based experiments will search for FIPs as dark matter candidates (ALPS II, BabyIAXO) or constituting the dark matter in our home galaxy (MADMAX).