Dark matter indirect signals with long-lived mediators

Understand

Dark matter particles could annihilate into light and metastable mediators subsequently decaying far away from where they are produced.

• In this scenario, the indirect signatures of dark matter are altered with respect to the conventional situation where standard model particles are directly injected where annihilation happens.
• We explore here this new phenomenology for which we devise the tools.
• We calculate the effective dark matter distribution resulting from the smearing by mediator propagation.