Sensitivity of ground-based Cherenkov telescopes for anisotropics in the cosmic gamma-ray background

Self-annihilating dark matter contributes to the extra galactic very high-energy γ-ray background. This contribution is expected to be anisotropic following the density distribution of non-baryonic dark matter. We explore the possibilities to search for these anisotropies with present and future ground-based gamma-ray experiments like H.E.S.S., MAGIC, or CTA. A multipole-expansion of simulated events is used to investigate the sensitivity for anisotropies detectable with narrow field of view observations.