Fig. 18.

The correlation observable $\Delta$S measured in 4j (left) and 2b2j (right) production, compared to predictions of pythia8 tunes CUETP8M1, CP2, CP4, and CP5, from the CMS $\sqrt{s}=7\text{TeV}$ analyses [61, 63]. Tunes CP1 and CP3 are not shown in the plot but show a similar behaviour as, respectively, tunes CP2 and CP4. The ratios of simulations to the data (MC/Data) are also shown, where the shaded band indicates the total experimental uncertainty in the data. Vertical lines drawn on the data points refer to the total uncertainty in the data. Vertical lines drawn on the MC points refer to the statistical uncertainty in the predictions. Horizontal bars indicate the associated bin width