Physicist at many Germany universities and unstitutes have contributed to the analyses in a recently published overview paper about the searches for Dark Matter at the ATLAS experiment. The paper has been accepted for publication by the Journal of High Energy Physics.
The question about the nature of Dark Matter stays unanswered. Thr ATLAS collaboration at CERN has summarised the searches for Dark Matter in a summary paper. With the data from proton-proton collisions at the LHC that was taken in 2015 and 2016, more stringent exclusion limits have been set on numerous representative processes. An extensive number of production mechanisms and final states have been covered.