7 |
|
uncertainties in the background yield and shape, resolution model and $Z$ yield. |
8 |
|
In the limit setting we also include the uncertainties from trigger efficiency, |
9 |
|
lepton selection efficiency, hadronic energy scale and integrated luminosity on the signal efficiency. |
10 |
< |
The expected LM1 yield is 23 $\pm$ 3 events. |
10 |
> |
The expected LM1 yield is 23 $\pm$ 2 events. |
11 |
|
|
12 |
|
We set upper limits on the non-SM contributions to the high \MET\ and high \Ht\ signal regions. |
13 |
|
For both regions, we find reasonable agreement between the observed yields and the predictions from MC and from the 2 |
14 |
|
data-driven methods. We choose here to extract the upper limits using the MC prediction for the |
15 |
|
background estimate. The 95\% CL upper limit is extracted using a Bayesian technique~\cite{ref:cl95cms}, |
16 |
< |
with a log-normal model of nuissance parameter integration assuming 0 signal . The results are summarized in |
17 |
< |
Table~\ref{tab:results}. Based on these results, we exclude LM1 and LM3. |
16 |
> |
with a log-normal model of nuissance parameter integration assuming 0 signal efficiency uncertainty. |
17 |
> |
We also extract a Bayesian 95\% CL upper limit on the quantity $\Delta$. The results are summarized in |
18 |
> |
Table~\ref{tab:results}. |
19 |
|
|
20 |
|
\begin{table}[hbt] |
21 |
|
\begin{center} |
22 |
|
\caption{\label{tab:results} |
23 |
< |
Summary of the observed and predicted yields in the 2 signal regions. The error in the MC prediction is statistical only. |
23 |
> |
Summary of the observed and predicted yields in the 2 signal regions. The uncertainty in the MC prediction is statistical only. |
24 |
|
The systematic uncertainties on the ABCD', \ptll, and OF subtraction predictions are discussed in the text. The non-SM yield UL is a |
25 |
< |
Bayesian 95\% confidence level upper limit. The LM1 and LM3 yields include uncertainties from trigger efficiency, |
25 |
> |
Bayesian 95\% confidence level upper limit. The LM1 and LM3 yields include uncertainties from MC statistics, trigger efficiency, |
26 |
|
lepton selection efficiency, hadronic energy scale and integrated luminosity. |
27 |
|
} |
28 |
|
\begin{tabular}{|l|c|c|c} |
34 |
|
MC prediction & 2.6 $\pm$ 0.8 & 2.5 $\pm$ 0.8 \\ |
35 |
|
ABCD' prediction & 1.2 $\pm$ 0.4 (stat) $\pm$ 0.5 (syst) & 0.0 $\pm$ 0.6 (stat) $\pm$ 0.3 (syst) \\ |
36 |
|
\ptll\ prediction & 5.4 $\pm$ 3.8 (stat) $\pm$ 2.2 (syst) & 1.7 $\pm$ 1.7 (stat) $\pm$ 0.6 (syst) \\ |
37 |
< |
non-SM yield UL & 5.2 & 4.1 \\ |
38 |
< |
LM1 yield & 17 $\pm$ 3.1 & 14 $\pm$ 3.1 \\ |
39 |
< |
LM3 yield & 6.4 $\pm$ 1.3 & 6.7 $\pm$ 1.6 \\ |
37 |
> |
non-SM yield UL & 6.9 & 5.8 \\ |
38 |
> |
LM1 yield & 17 $\pm$ 2.5 & 14 $\pm$ 2.9 \\ |
39 |
> |
LM3 yield & 6.4 $\pm$ 1.2 & 6.7 $\pm$ 1.5 \\ |
40 |
|
\hline |
41 |
< |
OF subtraction ($\Delta$) & 1.3 $\pm$ 1.9 (stat) $\pm$ 0.1 (syst) & 0.1 $\pm$ 1.5 (stat) $\pm$ 0.0 (syst) \\ |
41 |
> |
observed $\Delta$ & 1.3 $\pm$ 1.9 (stat) $\pm$ 0.5 (syst) & 0.1 $\pm$ 1.5 (stat) $\pm$ 0.5 (syst) \\ |
42 |
> |
UL $\Delta$ & 3.7 & 2.2 \\ |
43 |
> |
LM1 $\Delta$ & 9.6 $\pm$ 1.4 & 8.5 $\pm$ 1.8 \\ |
44 |
> |
LM3 $\Delta$ & 1.2 $\pm$ 0.4 & 1.2 $\pm$ 0.4 \\ |
45 |
|
\hline |
46 |
|
\end{tabular} |
47 |
|
\end{center} |