Search for decays of long-lived, massive particles in events with missing transverse energy and displaced vertices in $\sqrt{s}$ = 13 TeV pp collisions with the ATLAS detector

Long lived particles (LLPs) are predicted by a number of beyond the Standard Model (BSM) scenarios, including multiple supersymmetric models and exotic Higgs decays. These BSM models often predict distinctive experimental signatures like displaced vertices (DVs) alongside significant missing transverse momentum (MET) either from the production of the LLP itself or from the displaced decay of a dark matter candidate. These signatures are challenging to detect at collider experiments. Using 13 TeV proton-proton collision data from the ATLAS detector, corresponding to 137 fb$^{-1}$ of integrated luminosity, this talk covers the search at the ATLAS experiment at the Large Hadron Collider for events with DVs and significant missing transverse momentum. These results can be interpreted to set limits on various benchmark LLP models.