| 34 |
|
LM0 and LM1 events from Table~\ref{tab:sigcont}: $8.6 \pm 1.6$ |
| 35 |
|
events and $3.6 \pm 0.5$ events respectively, where the uncertainties |
| 36 |
|
are from energy scale (Section~\ref{sec:systematics}), luminosity, |
| 37 |
< |
and lepton efficiency. Note that these expected SUSY yields |
| 38 |
< |
are computed using LO cross-sections, and are therefore underestimated. |
| 37 |
> |
and lepton efficiency. |
| 38 |
> |
|
| 39 |
> |
We also performed a scan of the mSUGRA parameter space. We set $\tan\beta=10$, |
| 40 |
> |
sign of $\mu = +$, $A_{0}=0$~GeV, and scan the $m_{0}$ and $m_{1/2}$ parameters |
| 41 |
> |
in steps of 10~GeV. For each scan point, we exclude the point if the expected |
| 42 |
> |
yield in the signal region exceeds 4.7, which is the 95\% CL upper limit |
| 43 |
> |
based on an expected background of $N_{BG}=1.4 \pm 0.8$ and a 20\% acceptance |
| 44 |
> |
uncertainty. The results are shown in Fig.~\ref{fig:msugra}. |
| 45 |
> |
|
| 46 |
> |
\begin{figure}[tbh] |
| 47 |
> |
\begin{center} |
| 48 |
> |
\includegraphics[width=0.6\linewidth]{msugra.png} |
| 49 |
> |
\caption{\label{fig:msugra}\protect Exclusion curve in the mSUGRA parameter space, |
| 50 |
> |
assuming $\tan\beta=10$, sign of $\mu = +$ and $A_{0}=0$~GeVs.} |
| 51 |
> |
\end{center} |
| 52 |
> |
\end{figure} |
| 53 |
> |
|
| 54 |
|
|
| 55 |
|
Conveying additional useful information about the results of |
| 56 |
|
a generic ``signature-based'' search such as the one described |
| 60 |
|
Other models of new physics in the dilepton final state |
| 61 |
|
can be confronted in an approximate way by simple |
| 62 |
|
generator-level studies that |
| 63 |
< |
compare the expected number of events in 35 pb$^{-1}$ |
| 63 |
> |
compare the expected number of events in 34.0~pb$^{-1}$ |
| 64 |
|
with our upper limit of 4.1 events. The key ingredients |
| 65 |
|
of such studies are the kinematical cuts described |
| 66 |
|
in this note, the lepton efficiencies, and the detector |
| 71 |
|
$P_T = 10$ GeV to 91\% for $P_T > 30$ GeV. The isolation |
| 72 |
|
efficiency in top events varies from $\approx 83\%$ (muons) |
| 73 |
|
and $\approx 89\%$ (electrons) at $P_T=10$ GeV to |
| 74 |
< |
$\approx 95\%$ for $P_T>60$ GeV. |
| 75 |
< |
{\bf \color{red} The following quantities were calculated |
| 61 |
< |
with Spring10 samples. } |
| 62 |
< |
The average detector |
| 74 |
> |
$\approx 95\%$ for $P_T>60$ GeV. {\bf \color{red} The following quantities were calculated |
| 75 |
> |
with Spring10 samples. } The average detector |
| 76 |
|
responses for SumJetPt and $\met/\sqrt{\rm SumJetPt}$ are |
| 77 |
|
$1.00 \pm 0.05$ and $0.94 \pm 0.05$ respectively, where |
| 78 |
|
the uncertainties are from the jet energy scale uncertainty. |
