Abstract.
Astronomical observations demand the existence of dark matter, however no suitable candidates have been observed at the Large Hadron Collider or elsewhere so far. On one hand this has inspired the construction of many new models, on the other hand we may ask whether our theoretical computations have been accurate enough to correctly describe the on-going physics. The latter question is particularly relevant if "resonances" play a role in the dynamics. Among the various resonances, this talk concentrates on those originating from t-channel exchange. This case turns out to have close analogies with quarkonium states formed by strong interactions. Employing tools developed in that context, we discuss the possibility that dark matter bound states could affect the freeze-out dynamics.
(The slides will be available here)