  We study the collider phenomenology of dark matter pair production at the LHC
in simplified dark matter models and in the MSSM. Among the large space of dark
matter models, we focus on two particular models where a fermionic dark matter
candidate interacts with the Standard Model via the exchange of either a vector
mediator in the s-channel or coloured scalar mediators in the t-channel. We
find that the simplified models are capable of reproducing the predictions of
the MSSM to some extent in simplified supersymmetric scenarios, but lack the
complexity to descibe the complete theory over the full supersymmetric
parameter space.
