CERN Accelerating science

Performance of \textsc{ParticleNet} (blue lines) for identifying a $\ccbar$ pair for \larger\ jets with $\pt>300$\GeV. The solid (dashed) line shows the efficiency to correctly identify \HCC vs. the efficiency of misidentifying quarks or gluons from the \vjets process (vs. \HBB). The red crosses represent the three working points used in the merged-jet analysis. The performance of \textsc{DeepAK15} (yellow lines) used in Ref.~\cite{Sirunyan:2019qia} is shown for comparison.

Distribution of events as a function of $S/B$ in the \vzcc (\cmsLeft) and \vhcc (\cmsRight) searches, where $S$ and $B$ are the postfit signal and background yields, respectively, in each bin of the fitted \mhcand or BDT discriminant distributions. The bottom panel shows the ratio of data to the total background, with the uncertainty in background indicated by gray hatching. The red line represents background plus SM signal divided by background.

Distribution of events as a function of $S/B$ in the \vzcc (\cmsLeft) and \vhcc (\cmsRight) searches, where $S$ and $B$ are the postfit signal and background yields, respectively, in each bin of the fitted \mhcand or BDT discriminant distributions. The bottom panel shows the ratio of data to the total background, with the uncertainty in background indicated by gray hatching. The red line represents background plus SM signal divided by background.

Combined \mhcand distribution in all channels of the merged-jet analysis. The fitted \mhcand distribution in each SR is weighted by $S/(S+B)$, where $S$ and $B$ are the postfit \vhcc signal and total background yields. The lower panel shows data (points) and the fitted \vhcc (red) and \vzcc (grey) distributions after subtracting all other processes. Error bars represent pre-subtraction statistical uncertainties in data, while the gray hatching indicates the total uncertainty in the signal and all background processes.

The 95\% \CL upper limits on \muVHcc. Green and yellow bands indicate the 68 and 95\% intervals on the expected limits, respectively. The vertical red line indicates the SM value $\muVHcc=1$.