| 4 |
|
The data yields and corresponding MC predictions after this event preselection |
| 5 |
|
are given in Table~\ref{tab:yields}. The MC yields are normalized to~\lumifinal\ using |
| 6 |
|
next-to-leading order (NLO) cross sections. At the current LHC luminosity, the mean |
| 7 |
< |
number of expected pile-up interactions is approximately 5. In the MC, pile-up interactions |
| 7 |
> |
number of interactions in a single beam crossing is approximately 5. In the MC, multiple interactions |
| 8 |
|
are superimposed on the hard collision, and the MC is reweighted such that the distribution |
| 9 |
|
of reconstructed primary vertices matches that in data. As expected, the MC predicts that the |
| 10 |
|
sample passing the preselection is dominated by dilepton $t\bar{t}$. The data yield is in |
| 11 |
< |
reasonable agreement with the prediction. We also quote the yields for |
| 11 |
> |
reasonable agreement~\footnote{The luminosity is currently underestimated by approximately 10\%, |
| 12 |
> |
which explains the observed excess in data. The estimate will be updated before EPS.} |
| 13 |
> |
with the prediction. We also quote the yields for |
| 14 |
|
the LM1 and LM3 benchmark scenarios. |
| 15 |
|
|
| 16 |
|
\begin{table}[htb] |
| 21 |
|
The samples of MC $t\bar{t}$, $W^{\pm}$ + jets, and single-top events were |
| 22 |
|
generated with \MADGRAPH. The Drell--Yan sample (which includes events with |
| 23 |
|
invariant masses as low as 10\GeVcc) was generated using a mixture of \MADGRAPH\ and |
| 24 |
< |
\PYTHIA and contains decays to the $\tau^+\tau^-$ final state. All other samples were generated with \PYTHIA. |
| 25 |
< |
The LM0 and LM1 benchmark scenarios are defined in the text; the quoted $\sigma$ values refer to the total production |
| 24 |
> |
\PYTHIA and includes decays to the $\tau^+\tau^-$ final state. All other samples were generated with \PYTHIA. |
| 25 |
> |
The LM1 and LM3 benchmark scenarios are defined in the text; the quoted $\sigma$ values refer to the total production |
| 26 |
|
cross section for SUSY particles in these scenarios. Uncertainties are statistical only. |
| 27 |
|
} |
| 28 |
|
\vspace{2 mm} |
| 29 |
|
\begin{tabular}{lr|cccc} |
| 30 |
|
\hline |
| 31 |
< |
Sample & $\sigma$ & $ee$ & $\mu\mu$ & $e\mu$ & total \\ |
| 31 |
> |
Sample & $\sigma$ [pb] & $ee$ & $\mu\mu$ & $e\mu$ & total \\ |
| 32 |
|
\hline |
| 33 |
< |
\ttll & 16.9 & 147.6 $\pm$ 3.2 &166.4 $\pm$ 3.2 &391.7 $\pm$ 5.1 &705.8 $\pm$ 6.8 \\ |
| 34 |
< |
\ttfake & 140.6 & 4.5 $\pm$ 0.6 & 1.3 $\pm$ 0.3 & 8.1 $\pm$ 0.7 & 13.9 $\pm$ 1.0 \\ |
| 35 |
< |
DY & 18417 & 6.6 $\pm$ 1.8 & 9.5 $\pm$ 2.1 & 13.4 $\pm$ 2.6 & 29.6 $\pm$ 3.8 \\ |
| 36 |
< |
\WW & 2.9 & 1.4 $\pm$ 0.2 & 1.5 $\pm$ 0.2 & 3.4 $\pm$ 0.2 & 6.3 $\pm$ 0.3 \\ |
| 37 |
< |
\WZ & 0.3 & 0.3 $\pm$ 0.0 & 0.4 $\pm$ 0.0 & 0.7 $\pm$ 0.1 & 1.3 $\pm$ 0.1 \\ |
| 38 |
< |
\ZZ & 4.3 & 0.1 $\pm$ 0.0 & 0.1 $\pm$ 0.0 & 0.2 $\pm$ 0.0 & 0.4 $\pm$ 0.0 \\ |
| 39 |
< |
single top & 33 & 4.5 $\pm$ 0.2 & 5.0 $\pm$ 0.2 & 11.9 $\pm$ 0.3 & 21.4 $\pm$ 0.5 \\ |
| 40 |
< |
\wjets & 28049 & 4.5 $\pm$ 1.9 & 0.0 $\pm$ 0.0 & 2.8 $\pm$ 1.7 & 7.3 $\pm$ 2.6 \\ |
| 33 |
> |
\ttll & 17 & 147.6 $\pm$ 3.2 &166.4 $\pm$ 3.2 &391.7 $\pm$ 5.1 &705.8 $\pm$ 6.8 \\ |
| 34 |
> |
\ttfake & 141 & 4.5 $\pm$ 0.6 & 1.3 $\pm$ 0.3 & 8.1 $\pm$ 0.7 & 13.9 $\pm$ 1.0 \\ |
| 35 |
> |
DY$\to\ell^+\ell^-$ & 16677 & 6.6 $\pm$ 1.8 & 9.5 $\pm$ 2.1 & 13.4 $\pm$ 2.6 & 29.6 $\pm$ 3.8 \\ |
| 36 |
> |
\WW & 43 & 1.4 $\pm$ 0.2 & 1.5 $\pm$ 0.2 & 3.4 $\pm$ 0.2 & 6.3 $\pm$ 0.3 \\ |
| 37 |
> |
\WZ & 18 & 0.3 $\pm$ 0.0 & 0.4 $\pm$ 0.0 & 0.7 $\pm$ 0.1 & 1.3 $\pm$ 0.1 \\ |
| 38 |
> |
\ZZ & 5.9 & 0.1 $\pm$ 0.0 & 0.1 $\pm$ 0.0 & 0.2 $\pm$ 0.0 & 0.4 $\pm$ 0.0 \\ |
| 39 |
> |
single top & 102 & 4.5 $\pm$ 0.2 & 5.0 $\pm$ 0.2 & 11.9 $\pm$ 0.3 & 21.4 $\pm$ 0.5 \\ |
| 40 |
> |
\wjets & 96648 & 4.5 $\pm$ 1.9 & 0.0 $\pm$ 0.0 & 2.8 $\pm$ 1.7 & 7.3 $\pm$ 2.6 \\ |
| 41 |
|
\hline |
| 42 |
< |
total SM MC & & 169.7 $\pm$ 4.2 &184.3 $\pm$ 3.9 &432.2 $\pm$ 6.0 &786.1 $\pm$ 8.3 \\ |
| 42 |
> |
total SM MC & & 169.7 $\pm$ 4.2 &184.3 $\pm$ 3.9 &432.2 $\pm$ 6.0 &786.1 $\pm$ 8.3 \\ |
| 43 |
|
\hline |
| 44 |
< |
data & & 193 & 201 & 485 & 879 \\ |
| 44 |
> |
data & & 193 & 201 & 485 & 879 \\ |
| 45 |
|
\hline |
| 46 |
< |
LM1 & 6.7 & 22.3 $\pm$ 0.6 & 24.8 $\pm$ 0.6 & 12.8 $\pm$ 0.4 & 59.9 $\pm$ 0.9 \\ |
| 47 |
< |
LM3 & 5.3 & 7.9 $\pm$ 0.3 & 9.6 $\pm$ 0.3 & 14.2 $\pm$ 0.4 & 31.7 $\pm$ 0.6 \\ |
| 46 |
> |
LM1 & 6.7 & 22.3 $\pm$ 0.6 & 24.8 $\pm$ 0.6 & 12.8 $\pm$ 0.4 & 59.9 $\pm$ 0.9 \\ |
| 47 |
> |
LM3 & 5.3 & 7.9 $\pm$ 0.3 & 9.6 $\pm$ 0.3 & 14.2 $\pm$ 0.4 & 31.7 $\pm$ 0.6 \\ |
| 48 |
|
\hline |
| 49 |
|
\end{tabular} |
| 50 |
|
\end{center} |
