| 7 |
|
(CSV medium working point as described in Sec.~\ref{sec:selection}). |
| 8 |
|
The sample is dominanted by \wjets\ and is thus used to validate the MC modelling of this background. |
| 9 |
|
|
| 10 |
< |
In Table~\ref{tab:cr1mtsf} we show the amount that we need to scale the Wjets MC |
| 10 |
> |
In Table~\ref{tab:cr1mtsf} we show the amount that we need to scale the \wjets\ MC |
| 11 |
|
by in order to have agreement between data and Monte Carlo in the $M_T$ peak |
| 12 |
|
region, defined as $50 < M_T < 80$ GeV, for the |
| 13 |
|
different signal regions. (Recall, the signal regions have different |
| 31 |
|
e \mt-SF & $0.94 \pm 0.02$ & $0.90 \pm 0.04$ & $0.84 \pm 0.05$ & $0.80 \pm 0.07$ & $0.83 \pm 0.10$ & $0.77 \pm 0.13$ & $0.86 \pm 0.20$ & $0.87 \pm 0.29$ \\ |
| 32 |
|
\hline |
| 33 |
|
\end{tabular}} |
| 34 |
< |
\caption{ \mt\ peak Data/MC scale factors applied to Wjets |
| 35 |
< |
samples. The MC is used for backgrounds from rare |
| 34 |
> |
\caption{ \mt\ peak Data/MC scale factors applied to \wjets\ |
| 35 |
> |
samples. No scaling is made for backgrounds from other |
| 36 |
|
processes. CR1PRESEL refers to a sample with $\met>50$ GeV. |
| 37 |
|
The uncertainties are statistical only. |
| 38 |
|
\label{tab:cr1mtsf}} |
| 41 |
|
|
| 42 |
|
Next, in Fig~\ref{fig:cr1met},~\ref{fig:cr1mtrest}, |
| 43 |
|
and~\ref{fig:cr1mtrest2}, we show plots of \met\ and then $M_T$ |
| 44 |
< |
for different signal regions, i.e., for different \met\ requirements. |
| 44 |
> |
for different \met\ requirements corresponding to those defining our signal regions. |
| 45 |
|
It is clear that there are more events in the $M_T$ tail than |
| 46 |
|
predicted |
| 47 |
< |
from MC. This implies that we need to rescale the MC Wjets |
| 47 |
> |
from MC. This implies that we need to rescale the MC \wjets\ |
| 48 |
|
background |
| 49 |
|
in the tail region. |
| 50 |
|
|
| 109 |
|
|
| 110 |
|
The rescaling is explored |
| 111 |
|
in Table~\ref{tab:cr1yields}, |
| 112 |
< |
Here we compare the data and MC yields in the $M_T$ signal regions |
| 112 |
> |
where we compare the data and MC yields in the $M_T$ signal regions |
| 113 |
|
and in a looser control region. Note that the |
| 114 |
|
MC is normalized in the $M_T$ peak region by rescaling |
| 115 |
|
the \wjets\ component according to Table~\ref{tab:cr1mtsf}. |
| 116 |
|
|
| 117 |
|
We also derive data/MC scale factors. |
| 118 |
< |
These are derived in two different ways, separately for muons and |
| 119 |
< |
electrons and then combined, as follows; |
| 118 |
> |
As shown in Table~\ref{tab:cr1yields}, these are derived in two different ways, separately for muons and |
| 119 |
> |
electrons and then combined, as follows: |
| 120 |
|
\begin{itemize} |
| 121 |
< |
\item For first three sets of scale factors, above the triple horizontal |
| 121 |
> |
\item For the first three sets of scale factors, above the triple horizontal |
| 122 |
|
line, we calculate the scale factor as the amount by which we would |
| 123 |
|
need to rescale {\bf all} MC (\wjets\ , \ttbar\ , single top, rare) in |
| 124 |
|
order to have data-MC agreement in the $M_T$ tail. |
| 201 |
|
\end{figure} |
| 202 |
|
|
| 203 |
|
|
| 204 |
< |
\clearpage |
| 204 |
> |
\clearpage |
