LHC signatures of a Z' mediator between dark matter and the SU(3) sector

Understand

In this paper, we study the experimental signatures of a gluophilic $Z'$ at the LHC, in particular through the analysis of three jets or four tops events.

• The $Z'$ couples to gluons through dimension six operators and the parameter space is constrained with experimental searches released at 7 and 8 $\mathrm{TeV}$ by CMS along these two different channels.
• Existing constraints coming from the study of dark matter where the $Z'$ represents a possible mediator between the latter and the Standard Model are also included for comparison.
• Prospects at $\sqrt s=13$ TeV allow us to evaluate for which values of the parameter space a gluophilic $Z'$ could be discovered during the next run of the LHC.