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The event yields in data and Monte Carlo for SS and |
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OS are given in Tables~\ref{tab:yieldSS} and~\ref{tab:yieldOS}. |
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OS are given in |
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Tables~\ref{tab:yieldOS} and~{\color{red}\ref{tab:yieldSS} (old)} as well as~ |
| 21 |
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{\color{blue}\ref{tab:yieldSS2} (updated).} |
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|
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\begin{table}[htb] |
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\begin{center} |
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\caption{\label{tab:yieldSS} Observed and MC-predicted yields in the SS |
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selection. Quoted uncertainties are MC statistics only. In case that |
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no MC event passes the selection, we quote the uncertainty as the weight |
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of one MC event.} |
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\caption{\label{tab:yieldOS} Observed and MC-predicted yields in the OS |
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selection. Quoted uncertainties are MC statistics only. In case that |
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no QCDPt15 MC event passes the selection, we quote the uncertainty as the weight |
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of one QCDPt15 MC event.} |
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\begin{tabular}{|l|c|c|c|c|c|} \hline |
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Final State & QCD & $\gamma +$ jet & DY & Total MC & Data \\ |
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\hline |
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ee & & & & & \\ |
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e$\mu$ & & & & & \\ |
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$\mu\mu$ & & & & & \\ |
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ee & 0$\pm$2 & 0.01 $\pm$ 0.004 & 0.83$\pm$0.02 & 0.84$\pm$2.0 & 2 \\ |
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e$\mu$ & 0.17$\pm$2 & 0.000$\pm$0.004 & 0.08 $\pm$ 0.01& 0.25$\pm$2.0 & 0 \\ |
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$\mu\mu$& 0$\pm$2 & 0 & 1.36$\pm$0.03 &1.36$\pm$2.0& 3 \\ |
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\hline |
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All & & & & & \\ |
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All &0.17$\pm$3 &0.01$\pm$0.004 & 2.27$\pm$0.03 & 2.44$\pm$3.0 & 5 \\ |
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\hline |
| 38 |
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\end{tabular} |
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\end{center} |
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\end{table} |
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|
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|
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\begin{table}[htb] |
| 45 |
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\begin{center} |
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\caption{\label{tab:yieldOS} Observed and MC-predicted yields in the OS |
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selection. Quoted uncertainties are MC statistics only. In case that |
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no MC event passes the selection, we quote the uncertainty as the weight |
| 49 |
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of one MC event.} |
| 46 |
> |
{\color{red} |
| 47 |
> |
\caption{\label{tab:yieldSS} Observed and MC-predicted yields in the SS |
| 48 |
> |
selection. Quoted uncertainties are MC statistics only. In case that |
| 49 |
> |
no QCDPt15 MC event passes the selection, we quote the uncertainty as the weight |
| 50 |
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of one QCDPt15 MC event.(Old Table which is updated below)} |
| 51 |
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\begin{tabular}{|l|c|c|c|c|c|} \hline |
| 52 |
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Final State & QCD & $\gamma +$ jet & DY & Total MC & Data \\ |
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Final State & QCD & $\gamma +$ jet & DY & Total MC & Data \\ |
| 53 |
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\hline |
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ee & 0.00$\pm$0.17 & 0.01 $\pm$ 0.004 & 0.83$\pm$0.02 & 0.84$\pm$0.17 & 2 \\ |
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e$\mu$ & 0.17$\pm$0.17 & 0.000$\pm$0.004& 0.08 $\pm$ 0.01& 0.25$\pm$0.17 & 0 \\ |
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$\mu\mu$ & 0.00$\pm$0.17 & 0.000 $\pm$ 0.004 & 1.36$\pm$0.03&1.36$\pm$0.17&3 \\ |
| 54 |
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ee & $0 \pm 2$ & $0.002 \pm 0.002$ & $0.01 \pm 0.003$&$ 0.01\pm 2.0$ &0 \\ |
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e$\mu$ & $0 \pm 2$ & $0.004 \pm 0.003$ & $0.005 \pm 0.002$&$ 0.01 \pm 2.0 $ &0 \\ |
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$\mu\mu$ & $0 \pm 2$ & 0 & $0.001 \pm 0.001$&$ 0.001\pm 2.0 $ &0 \\ |
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\hline |
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All &0.17$\pm$0.17 &0.01$\pm$0.004 & 2.27$\pm$0.03 & 2.44$\pm$0.17 & 5 \\ |
| 58 |
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All & $0 \pm 3$ & $0.006 \pm 0.003$ & $0.016 \pm 0.003$&$0.02\pm 3.0 $ &0 \\ |
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\hline |
| 60 |
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\end{tabular} |
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} |
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\end{center} |
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\end{table} |
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|
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|
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|
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|
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\begin{table}[htb] |
| 71 |
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\begin{center} |
| 72 |
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{\color{blue} |
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+ |
\caption{\label{tab:yieldSS2} Observed and MC-predicted yields in the SS |
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selection. Quoted uncertainties are MC statistics only. In case that |
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no QCDPt15 MC event passes the selection, we quote the uncertainty as the weight |
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of one QCDPt15 MC event. (New updated Table)} |
| 77 |
+ |
|
| 78 |
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\begin{tabular}{|l|c|c|c|c|c|} \hline |
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Final State & QCD & $\gamma +$ jet & DY & Total MC & Data \\ |
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\hline |
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ee & $0 \pm 11$ & $0.01 \pm 0.01$ & $0.07 \pm 0.01$&$ 0.08\pm 11$ &0 \\ |
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e$\mu$ & $0 \pm 11$ & $0.02 \pm 0.01$ & $0.02 \pm 0.01$&$ 0.04 \pm 11 $ &1 \\ |
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$\mu\mu$ & $0 \pm 11$ & 0 & $0.01 \pm 0.04$&$ 0.01\pm 11 $ &0 \\ |
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\hline |
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All & $0 \pm 19$ & $0.03 \pm 0.02$ & $0.10 \pm 0.02$&$0.13\pm 19 $ &1 \\ |
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\hline |
| 87 |
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\end{tabular} |
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} |
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\end{center} |
| 90 |
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\end{table} |
| 91 |
+ |
|
| 92 |
+ |
|
| 93 |
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We find the $\gamma +$ jet MC predictions to be negligible. |
| 94 |
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The QCD statistics are so poor that we cannot make any quantitative |
| 95 |
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statement. |
| 96 |
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The OS data is dominated by Drell Yan. The agreement between |
| 97 |
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MC and data yields is good. |
| 98 |
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|
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For now we use the MC to predict the rate of SS events from Drell-Yan evens |
| 100 |
< |
off the $Z$ peak. These events are from electron charge misidentification. |
| 99 |
> |
For now we use the MC to predict the rate of SS events from Drell-Yan |
| 100 |
> |
off the $Z$ peak. These events are mostly from electron charge misidentification. |
| 101 |
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We have developed techniques to measure this charge flip probability |
| 102 |
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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 |
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|
