Strong dynamics and dark matter: investigating a minimal setup
Résumé
We discuss the phenomenology of a dark matter scenario in which we extend theStandard Model by a real scalar particle and a vector-like heavy quark. Such amodel can be seen as a simplified version of a composite setup in which thescalar field, that couples to the top quark via a Yukawa interaction with thenew heavy quark, is a viable dark matter candidate. We emphasize that QCDcorrections are important not only for predictions at colliders but also fordirect and indirect dark matter searches and the relic abundance. We moreovershow that a large fraction of the model parameter space remains unconstrained.