  The ATLAS collaboration reported a 3sigma excess in the search of events
containing on-Z dilepton, jets, and large missing momentum (MET) in the 8 TeV
LHC run. Motivated by this excess, many models of new physics have been
proposed. Recently, the ATLAS and CMS collaborations reported new results for
similar Z+MET channels in the 13 TeV run. In this paper, we comprehensively
discuss the consistency between the proposed models and the LHC results of Run
1 and Run 2. We find that in models with heavy gluino production, there is
generically some tension between the 8 TeV and 13 TeV results. On the other
hand, models with light squark production provide relatively better fitting to
both results.
