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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 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. Also shown are the yields for LM0 |
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and LM1, two of the LM points which are benchmarks for SUSY analyses at CMS. |
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The MC yields are normalized to 34.0~pb$^{-1}$ using the cross-sections |
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from Reference~\cite{ref:xsec}. As anticipated, the MC predicts that the |
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preselection is dominated by $t\bar{t}$. The data yield is in good agreement |
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with the prediction. Also shown are the yields for LM0 and LM1, two of the LM |
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points which are benchmarks for SUSY analyses at CMS. Note that the LM yields |
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are calculated at NLO using process-dependent k-factors computed from Prospino. |
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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 (34.85~pb$^{-1}$) for the preselection. |
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\caption{\label{tab:yields} Data and Monte Carlo yields (34.0~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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$t \to W \to \tau \to \ell$, $t\bar{t}\rightarrow \mathrm{other}$ are all other $t\bar{t}$ modes).} |
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\begin{tabular}{ccccc} |
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%%% official json v3, 33.96/pb, 38X MC (D6T ttbar and DY) |
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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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$t\bar{t}\rightarrow \ell^{+}\ell^{-}$ & 14.21 $\pm$ 0.23 & 17.16 $\pm$ 0.25 & 40.50 $\pm$ 0.39 & 71.87 $\pm$ 0.52 \\ |
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$t\bar{t}\rightarrow \mathrm{other}$ & 0.48 $\pm$ 0.04 & 0.21 $\pm$ 0.03 & 1.00 $\pm$ 0.06 & 1.69 $\pm$ 0.08 \\ |
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Z^0 \rightarrow e^{+}e^{-} & 0.20 $\pm$ 0.10 & 0.00 $\pm$ 0.00 & 0.00 $\pm$ 0.00 & 0.20 $\pm$ 0.10 \\ |
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Z^0 \rightarrow \mu^{+}\mu^{-} & 0.00 $\pm$ 0.00 & 0.40 $\pm$ 0.14 & 0.11 $\pm$ 0.08 & 0.51 $\pm$ 0.16 \\ |
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Z^0 \rightarrow \tau^{+}\tau^{-} & 1.14 $\pm$ 0.25 & 1.11 $\pm$ 0.24 & 1.46 $\pm$ 0.28 & 3.70 $\pm$ 0.45 \\ |
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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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$W^+W^-$ & 0.15 $\pm$ 0.01 & 0.16 $\pm$ 0.02 & 0.38 $\pm$ 0.02 & 0.70 $\pm$ 0.03 \\ |
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$W^{\pm}Z^0$ & 0.03 $\pm$ 0.00 & 0.02 $\pm$ 0.00 & 0.04 $\pm$ 0.00 & 0.09 $\pm$ 0.00 \\ |
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$t\bar{t}\rightarrow \ell^{+}\ell^{-}$ & 14.50 $\pm$ 0.24 & 17.52 $\pm$ 0.26 & 41.34 $\pm$ 0.40 & 73.36 $\pm$ 0.53 \\ |
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$t\bar{t}\rightarrow \mathrm{other}$ & 0.49 $\pm$ 0.04 & 0.21 $\pm$ 0.03 & 1.02 $\pm$ 0.06 & 1.72 $\pm$ 0.08 \\ |
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$Z^0 \rightarrow \ell^{+}\ell^{-}$ & 1.02 $\pm$ 0.21 & 1.16 $\pm$ 0.22 & 1.20 $\pm$ 0.22 & 3.38 $\pm$ 0.37 \\ |
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$W^{\pm}$ + jets & 0.19 $\pm$ 0.13 & 0.00 $\pm$ 0.00 & 0.09 $\pm$ 0.09 & 0.28 $\pm$ 0.16 \\ |
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$W^+W^-$ & 0.15 $\pm$ 0.01 & 0.16 $\pm$ 0.01 & 0.37 $\pm$ 0.02 & 0.68 $\pm$ 0.03 \\ |
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$W^{\pm}Z^0$ & 0.02 $\pm$ 0.00 & 0.02 $\pm$ 0.00 & 0.04 $\pm$ 0.00 & 0.09 $\pm$ 0.00 \\ |
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$Z^0Z^0$ & 0.01 $\pm$ 0.00 & 0.02 $\pm$ 0.00 & 0.02 $\pm$ 0.00 & 0.05 $\pm$ 0.00 \\ |
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single top & 0.47 $\pm$ 0.02 & 0.56 $\pm$ 0.02 & 1.28 $\pm$ 0.03 & 2.31 $\pm$ 0.04 \\ |
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single top & 0.46 $\pm$ 0.02 & 0.55 $\pm$ 0.02 & 1.24 $\pm$ 0.03 & 2.25 $\pm$ 0.04 \\ |
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\hline |
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total SM MC & 16.88 $\pm$ 0.38 & 19.64 $\pm$ 0.38 & 44.88 $\pm$ 0.50 & 81.40 $\pm$ 0.74 \\ |
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total SM MC & 16.85 $\pm$ 0.34 & 19.63 $\pm$ 0.34 & 45.33 $\pm$ 0.47 & 81.81 $\pm$ 0.67 \\ |
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\hline |
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data & 18 & 23 & 45 & 86 \\ |
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data & 15 & 22 & 45 & 82 \\ |
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\hline |
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LM0 & 7.49 $\pm$ 0.22 & 8.81 $\pm$ 0.23 & 12.08 $\pm$ 0.27 & 28.38 $\pm$ 0.42 \\ |
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LM1 & 1.71 $\pm$ 0.04 & 2.06 $\pm$ 0.04 & 1.06 $\pm$ 0.03 & 4.83 $\pm$ 0.06 \\ |
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% LM0 & 7.30 $\pm$ 0.21 & 8.58 $\pm$ 0.23 & 11.77 $\pm$ 0.27 & 27.66 $\pm$ 0.41 \\ |
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% LM1 & 1.67 $\pm$ 0.04 & 2.01 $\pm$ 0.04 & 1.03 $\pm$ 0.03 & 4.71 $\pm$ 0.06 \\ |
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%Using Sanjay k-factors |
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LM0 & 10.67 $\pm$ 0.31 & 12.63 $\pm$ 0.34 & 17.81 $\pm$ 0.41 & 41.11 $\pm$ 0.62 \\ |
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LM1 & 2.35 $\pm$ 0.05 & 2.83 $\pm$ 0.06 & 1.51 $\pm$ 0.04 & 6.69 $\pm$ 0.09 \\ |
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|
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\hline |
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\end{tabular} |
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\end{center} |
