Secluded Dark Matter in light of the Cherenkov Telescope Array (CTA)

Understand

Secluded dark matter is one of the most popular dark matter models, where dark matter annihilations go into particles that belong to a dark sector.

• An interesting way to probe such models is via indirect detection.
• In particular, gamma-ray observations are rather promising.
• Taking into account $1\%$ level of systematics, in this work we show that the Cherenkov Telescope Array (CTA) will place the most stringent bounds on the dark matter annihilation cross section, surpassing existing probes based on H.E.S.S., Fermi-LAT, and Planck data, for dark matter masses above $400$ GeV, independently of the channel and choosing the Einasto profile.