Dark sector searches at ATLAS and CMS

In the quest for expanding our understanding of Nature, one of the main open issues is the existence of dark matter i.e., the observation that most of the gravitational mass acting in the universe appears insensitive to any of the other known interactions. Collider experiments provides a powerful complement to direct and indirect searches for dark matter, both thorough searches based on simplified models aimed at exploring wide ranges of phase space, as well as more targeted searches for signatures that would elude the first strategy. We present recent results in this field from the ATLAS and CMS experiment at the CERN LHC collider.