| 16 |
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| 17 |
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| 18 |
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The event yields in data and Monte Carlo for SS and |
| 19 |
< |
OS are given in Tables~\ref{tab:yieldSS} and~\ref{tab:yieldOS}. |
| 19 |
> |
OS are given in Tables~\ref{tab:yieldOS} and~\ref{tab:yieldSS}. |
| 20 |
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|
| 21 |
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\begin{table}[htb] |
| 22 |
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\begin{center} |
| 23 |
< |
\caption{\label{tab:yieldSS} Observed and MC-predicted yields in the SS |
| 24 |
< |
selection. Quoted uncertainties are MC statistics only. In case that |
| 23 |
> |
\caption{\label{tab:yieldOS} Observed and MC-predicted yields in the OS |
| 24 |
> |
selection. Quoted uncertainties are MC statistics only. In case that |
| 25 |
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no MC event passes the selection, we quote the uncertainty as the weight |
| 26 |
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of one MC event.} |
| 27 |
|
\begin{tabular}{|l|c|c|c|c|c|} \hline |
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|
Final State & QCD & $\gamma +$ jet & DY & Total MC & Data \\ |
| 29 |
|
\hline |
| 30 |
< |
ee & & & & & \\ |
| 31 |
< |
e$\mu$ & & & & & \\ |
| 32 |
< |
$\mu\mu$ & & & & & \\ |
| 30 |
> |
ee & 0.00$\pm$0.17 & 0.01 $\pm$ 0.004 & 0.83$\pm$0.02 & 0.84$\pm$0.17 & 2 \\ |
| 31 |
> |
e$\mu$ & 0.17$\pm$0.17 & 0.000$\pm$0.004 & 0.08 $\pm$ 0.01& 0.25$\pm$0.17 & 0 \\ |
| 32 |
> |
$\mu\mu$& 0.00$\pm$0.17 & 0 & 1.36$\pm$0.03 &1.36$\pm$0.17&3 \\ |
| 33 |
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\hline |
| 34 |
< |
All & & & & & \\ |
| 34 |
> |
All &0.17$\pm$0.17 &0.01$\pm$0.004 & 2.27$\pm$0.03 & 2.44$\pm$0.17 & 5 \\ |
| 35 |
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\hline |
| 36 |
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\end{tabular} |
| 37 |
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\end{center} |
| 38 |
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\end{table} |
| 39 |
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|
| 40 |
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|
| 41 |
+ |
|
| 42 |
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\begin{table}[htb] |
| 43 |
|
\begin{center} |
| 44 |
< |
\caption{\label{tab:yieldOS} Observed and MC-predicted yields in the OS |
| 45 |
< |
selection. Quoted uncertainties are MC statistics only. In case that |
| 44 |
> |
\caption{\label{tab:yieldSS} Observed and MC-predicted yields in the SS |
| 45 |
> |
selection. Quoted uncertainties are MC statistics only. In case that |
| 46 |
|
no MC event passes the selection, we quote the uncertainty as the weight |
| 47 |
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of one MC event.} |
| 48 |
|
\begin{tabular}{|l|c|c|c|c|c|} \hline |
| 49 |
< |
Final State & QCD & $\gamma +$ jet & DY & Total MC & Data \\ |
| 49 |
> |
Final State & QCD & $\gamma +$ jet & DY & Total MC & Data \\ |
| 50 |
|
\hline |
| 51 |
< |
ee & 0.00$\pm$0.17 & 0.01 $\pm$ 0.004 & 0.83$\pm$0.02 & 0.84$\pm$0.17 & 2 \\ |
| 52 |
< |
e$\mu$ & 0.17$\pm$0.17 & 0.000$\pm$0.004& 0.08 $\pm$ 0.01& 0.25$\pm$0.17 & 0 \\ |
| 53 |
< |
$\mu\mu$ & 0.00$\pm$0.17 & 0.000 $\pm$ 0.004 & 1.36$\pm$0.03&1.36$\pm$0.17&3 \\ |
| 51 |
> |
ee & $0.0 \pm 0.2$ & $0.002 \pm 0.002$ & $0.01 \pm 0.003$&$ 0.01\pm 0.2$ &0 \\ |
| 52 |
> |
e$\mu$ & $0.0 \pm 0.2$ & $0.004 \pm 0.003$ & $0.005 \pm 0.002$&$ 0.01 \pm 0.2 $ &0 \\ |
| 53 |
> |
$\mu\mu$ & $0.0 \pm 0.2$ & 0 & $0.001 \pm 0.001$&$ 0.001\pm 0.2 $ &0 \\ |
| 54 |
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\hline |
| 55 |
< |
All &0.17$\pm$0.17 &0.01$\pm$0.004 & 2.27$\pm$0.03 & 2.44$\pm$0.17 & 5 \\ |
| 55 |
> |
All & $0.0 \pm 0.2$ & $0.006 \pm 0.003$ & $0.016 \pm 0.003$&$0.02\pm 0.3$ &0 \\ |
| 56 |
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\hline |
| 57 |
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\end{tabular} |
| 58 |
|
\end{center} |
| 60 |
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|
| 61 |
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|
| 62 |
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|
| 63 |
+ |
|
| 64 |
+ |
|
| 65 |
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We find the $\gamma +$ jet MC predictions to be negligible. |
| 66 |
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The QCD statistics are so poor that we cannot make any quantitative |
| 67 |
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statement. |
| 68 |
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The OS data is dominated by Drell Yan. The agreement between |
| 69 |
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MC and data yields is good. |
| 70 |
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|
| 71 |
< |
For now we use the MC to predict the rate of SS events from Drell-Yan evens |
| 72 |
< |
off the $Z$ peak. These events are from electron charge misidentification. |
| 71 |
> |
For now we use the MC to predict the rate of SS events from Drell-Yan |
| 72 |
> |
off the $Z$ peak. These events are mostly from electron charge misidentification. |
| 73 |
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We have developed techniques to measure this charge flip probability |
| 74 |
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from $Z \to ee$ data\cite{ref:SSSusy}. However, this cannot be done at the |
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present level of statistics. Interestingly enough, we did find one SS |
