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Résumé |
The absence of conclusive signals for simple weakly interacting massive particle (WIMP) dark matter motivates the exploration of extended dark sectors with richer structures. In this talk, I present flavored dark matter models within the Dark Minimal Flavor Violation (DMFV) framework, where dark matter carries flavor quantum numbers and interacts with the Standard Model through flavor-dependent couplings. This setup establishes a direct link between dark matter phenomenology and the flavor structure of the visible sector, leading to distinctive and highly constrained signatures across cosmology, flavor physics, direct and indirect detection, and collider experiments. I first introduce a general framework that enables a systematic and automated exploration of such models, allowing us to identify the most relevant constraints and viable regions of parameter space.
Building on this, I then highlight novel dynamical phenomena that arise in flavored dark matter scenarios. In particular, I discuss conversion-driven freeze-out, where conversions within the dark sector play a crucial role in setting the relic abundance and can allow for couplings which are several orders of magnitude smaller compared to those needed for standard freeze-out. Finally, I demonstrate how these dynamics can be extended to realize baryogenesis in quark-philic flavored dark matter models. In this context, the interplay of dark–visible conversions and finite-temperature effects enables the simultaneous generation of the dark matter relic density and the baryon asymmetry, opening new and testable regions of parameter space up to the TeV scale.
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