we consider for the analysis are the four-momenta of the two $b$-jets, two light jets and isolated lepton, as well as the missing energy ($\slashed{E}_T$) in the event (21 observables in total). To represent possible systematic uncertainties that can arise in detectors from jet energy scales, we apply a smearing procedure to the jets and the missing energy in the events. For the jets and leptons, we use a smearing based on Refs. [@Buckley:2010ar; @ATLAS:2015uwa] where the three-momenta of each object is smeared with a Gaussian. In our case, we take the extremities of this Gaussian so that the smearing is either applied upwards or downwards for all objects, with the relative width of the smearing envelope being larger for smaller $p_T$ values. Similarly, we apply a shift to the missing energy based on Ref. [@Aad:2012re], where the width of the shift is proportional to $\sqrt{H_T}$, and use the two extremities of the envelope. We fix the direction of the missing energy smearing to always be the same as that of the jets and leptons. For the purposes of this study, we increase the size of the smearing envelope by a further factor of three, to be conservative on the 