# Latest results on dark matter searches with H.E.S.S

## TL;DR

This paper reviews recent results from H.E.S.S. in searching for dark matter signatures via very-high-energy gamma rays, focusing on the Galactic Centre and dwarf galaxies, providing new constraints on dark matter models.

## Contribution

It presents the latest observational results and constraints on dark matter annihilation from H.E.S.S. in the TeV energy range, highlighting improvements over previous searches.

## Key findings

- Stringent constraints on dark matter annihilation cross section in the 300 GeV - 70 TeV mass range.
- No definitive dark matter signal detected in the Galactic Centre or dwarf galaxies.
- Enhanced sensitivity of H.E.S.S. observations to heavy dark matter models.

## Abstract

The nature of Dark Matter (DM) is one of the most debated questions of contemporary physics. Ground-based arrays of Cherenkov telescopes such as the High Energy Spectroscopic System (H.E.S.S.) search for DM signatures through the detection of Very-High-Energy (VHE, $E > 100$ GeV) gamma-rays. DM particles could self-annihilate in dense environments producing VHE $\gamma$-rays in the final states that could be eventually detected by H.E.S.S.. The H.E.S.S. observation strategy for DM search focuses towards the Galactic Centre (GC) region and nearby dwarf galaxy satellites of the Milky Way. The GC dataset provides the most stringent constraints on the DM annihilation cross section in the mass range 300 GeV - 70 TeV. Searches have been carried out towards classical and ultra-faint dwarf galaxies to test specific heavy DM models. The latest results towards the GC and dwarf galaxies are shown.