Random news from the dark world

Assuming that Dark Matter (DM) is a particle, we study three scenarios that can be tested at the Large Hadron Collider. The simplest extensions of the Standard Model (SM) with the addition of scalar singlets can provide DM candidates. It is shown that the allowed DM mass range of mass increases with the number of added singlets. DM can also be hidden in present searches and we analyze the case of top anti-top production. Finally, models with CP-violation in the dark sector can be probed via quantum effects on anomalous gauge boson couplings.