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\label{sec:yields} |
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The data yields and the MC predictions are given in Table~\ref{tab:yields}. |
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The MC yields are normalized to 30 pb$^{-1}$ using the cross-sections |
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The MC yields are normalized to 34.85 pb$^{-1}$ using the cross-sections |
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from Reference~\cite{ref:xsec}. |
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As anticipated, the MC predicts |
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that the preselection is dominated by $t\bar{t}$. The data yield is |
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in good agreement with the prediction. |
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\begin{table}[htb] |
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\begin{center} |
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\caption{\label{tab:yields} Data and Monte Carlo yields for the preselection. |
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(ttdil refers to dileptonic $t\bar{t}$ including $t \to W \to \ell$, |
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ttothr are all other $t\bar{t}$ modes).} |
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\begin{tabular}{|c|c|c|c|c|} |
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\hline |
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Sample & ee & $\mu\mu$ & $e\mu$ & total \\ \hline |
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ttdil & 12.8 & 15.3 & 34.9 & 63.0 \\ |
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ttothr & 0.5 & 0.2 & 0.8 & 1.5 \\ |
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Zjets & 0.7 & 1.4 & 0.6 & 2.7 \\ |
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Wjets & 0.17 & 0.00 & 0.08 & 0.25 \\ |
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$WW$ & 0.15 & 0.19 & 0.36 & 0.69 \\ |
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$WZ$ & 0.04 & 0.04 & 0.06 & 0.15 \\ |
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$ZZ$ & 0.01 & 0.01 & 0.02 & 0.05 \\ |
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$tW$ & 0.39 & 0.45 & 0.97 & 1.81 \\ |
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\caption{\label{tab:yields} Data and Monte Carlo yields (34.85~pb$^{-1}$) for the preselection. |
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($t\bar{t}\rightarrow \ell^{+}\ell^{-}$corrresponds to dileptonic $t\bar{t}$ including |
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$t \to W \to \tau \to \ell$, |
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$t\bar{t}\rightarrow \mathrm{other}$ are all other $t\bar{t}$ modes).} |
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\begin{tabular}{ccccc} |
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\hline |
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Sample & $ee$ & $\mu\mu$ & $e\mu$ & tot \\ |
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\hline |
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$t\bar{t}\rightarrow \ell^{+}\ell^{-}$ & 14.85 $\pm$ 0.23 & 17.61 $\pm$ 0.26 & 40.40 $\pm$ 0.39 & 72.85 $\pm$ 0.52 \\ |
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$t\bar{t}\rightarrow \mathrm{other}$ & 0.53 $\pm$ 0.04 & 0.24 $\pm$ 0.03 & 0.96 $\pm$ 0.06 & 1.74 $\pm$ 0.08 \\ |
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$Z^0$ + jets & 0.77 $\pm$ 0.24 & 1.00 $\pm$ 0.28 & 0.69 $\pm$ 0.23 & 2.47 $\pm$ 0.44 \\ |
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$W^{\pm}$ + jets & 0.19 $\pm$ 0.14 & 0.00 $\pm$ 0.00 & 0.10 $\pm$ 0.10 & 0.29 $\pm$ 0.17 \\ |
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$W^+W^-$ & 0.17 $\pm$ 0.05 & 0.21 $\pm$ 0.05 & 0.41 $\pm$ 0.07 & 0.79 $\pm$ 0.10 \\ |
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$W^{\pm}Z^0$ & 0.04 $\pm$ 0.02 & 0.03 $\pm$ 0.01 & 0.05 $\pm$ 0.02 & 0.13 $\pm$ 0.03 \\ |
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$Z^0Z^0$ & 0.02 $\pm$ 0.00 & 0.01 $\pm$ 0.00 & 0.02 $\pm$ 0.01 & 0.04 $\pm$ 0.01 \\ |
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single top & 0.47 $\pm$ 0.02 & 0.51 $\pm$ 0.02 & 1.15 $\pm$ 0.03 & 2.14 $\pm$ 0.04 \\ |
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\hline |
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total SM MC & 17.04 $\pm$ 0.37 & 19.62 $\pm$ 0.38 & 43.79 $\pm$ 0.47 & 80.45 $\pm$ 0.71 \\ |
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\hline |
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data & 18 & 23 & 45 & 86 \\ |
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\hline |
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LM0 & 8.15 $\pm$ 0.23 & 9.34 $\pm$ 0.25 & 12.64 $\pm$ 0.29 & 30.12 $\pm$ 0.44 \\ |
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LM1 & 1.81 $\pm$ 0.04 & 2.04 $\pm$ 0.04 & 1.03 $\pm$ 0.03 & 4.89 $\pm$ 0.06 \\ |
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\hline |
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total SM MC (30 pb$^{-1}$) & 14.7 & 17.6 & 37.8 & 70.1 \\ \hline |
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data (11.1 pb$^{-1}$) & 7 & 7 & 10 & 24 \\ \hline |
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\end{tabular} |
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\end{center} |
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\end{table} |
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