states involving electroweak decay processes, such as the production of $W+\text{jets}$ and $Z+\text{jets}$ in the hadronic decay mode or the production of $t \bar t$, are estimated by MC simulations and found to be below 0.5 %, limited by the available MC statistics. As an additional cross-check, events with two jets with $p^{j_1}_T>350$ GeV and $p^{j_2}_T>100$ GeV and one additional reconstructed isolated muon with a transverse momentum of at least 50 GeV have been selected. Those events are expected to come from $W/Z$+jets, $t\bar t$ or $WW$ decays, with at least one vector boson decaying leptonically. In total, 31 events pass this selection, of which no events with two muons were found. Assuming that these muons all stem from leptonic $W$-boson decays, we expect $\approx$ 310 electroweak background events, i.e. a background contribution of 1%, which we take as an estimate in the following.

Both QCD MC samples (Table \[tab:MCSamples\]) have been used to study migration effects, i.e. a change in the jet ordering or a wrong charge assignment of $\alpha$ using MC truth information. The minimal [$p_{\mathrm{T}}$]{} difference between the jets as well as the $\Delta\Phi(j_1,j_2)$ requirement results in only 1.5% of events, in which the jet-${\ensuremath{p_{\mathrm{T}}}}$ ordering is 