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\section{Interpretation} |
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\label{sec:interpretation} |
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In this section, we interpret the results of the targeted search in the context of the \wzmet\ model depicted in Fig.~\ref{fig:diagrams} (right). |
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An interpretation in the GMSB model which produces a signature of \zzmet\ will be added. The results of the targeted search presented here |
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In this section, we interpret the results of the targeted search in the context of the \wzmet\ model depicted in Fig.~\ref{fig:diagrams} (right) |
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and a gauge-mediated SUSY breaking (GMSB) model that produces a signature of \zzmet\ will be added. The results of the targeted search presented here |
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will be combined with those of the trilepton ewkino search for the final \wzmet\ interpretation, and with the quadlepton ewkino search |
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for the final GMSB \zzmet\ interpretation. |
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The exclusion is performed using the results of simultaneous counting experiments in the exclusive \MET\ signal regions defined by \MET\ $>$ 80 GeV, |
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The exclusion is performed using the results of simultaneous counting experiments in the five exclusive \MET\ signal regions defined by \MET\ $>$ 80 GeV, |
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as summarized in Table~\ref{tab:results_targ} (commonly referred to as a ``shape analysis''). |
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The signal efficiency times acceptance and cross section upper limits are displayed in Fig.~\ref{fig:results_wzmet}, |
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The upper limit calculation is performed with the LandS software using the LHC-type CLs criterion. |
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The signal efficiency uncertainties include the luminosity (4.4\%), acceptance for the b-jet veto (4\%), lepton ID and isolation efficiency (2\% per lepton), |
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and trigger efficiency (3\%). The uncertainty from JES is determined following the POG-recommended procedure, by varying the jet energies by the |
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\pt- and $\eta$-dependent uncertainties and propagating this to the jet multiplicity, dijet mass, and \MET. |
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The background uncertainties are quoted in Table~\ref{tab:results_targ}. For each background contribution, the uncertainty is assumed to be 100\% |
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correlated across all signal regions. |
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For the \wzmet\ model, the signal efficiency times acceptance and cross section upper limits are displayed in Fig.~\ref{fig:results_wzmet}, |
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along with the observed and expected exclusion contours, which are compared to the 2011 observed exclusion contour. |
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Figure~\ref{fig:results_wzmetpoints} shows the excluded points used to derive the exclusion contours. We note that the map of exclusion |
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contours appears quite ragged since for many of the points the cross section upper limit is very close to the theory cross section. |
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\includegraphics[width=0.45\textwidth]{plots/wzsms_xsec.pdf} |
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\end{tabular} |
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\caption{ Interpretation of the targeted analysis in the \wzmet\ model. The acceptance times efficiency (left) and cross section |
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upper limit (right) and displayed. The observed and expected exclusion contours are indicated and compared to the observed |
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exclusion from the 2011 analysis. |
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upper limit (right) are displayed. The observed and expected exclusion contours are indicated and compared to the observed |
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exclusion from the 2011 analysis. |
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%\newline |
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%Interpretation of the $\rm{Z}+\rm{dijet}$ analysis in the \wzmet\ model of Fig.~2(a). |
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%The shading indicates the cross section upper limit. The observed and expected exclusion contours are indicated and compared to the observed |
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%exclusion from the 2011 analysis. The region below the contours is excluded at 95\% confidence level. |
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\label{fig:results_wzmet}} |
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\end{center} |
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\end{figure} |
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\end{center} |
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\end{figure} |
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The results of the interpretation in the GMSB \zzmet\ model are displayed in Fig.~\ref{fig:results_gmsb}, |
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as a function of the chargino and neutralino mass parameter $\mu$. These results exclude the range $196 < \mu < 316$~GeV. |
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\begin{figure}[!hb] |
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\begin{center} |
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\includegraphics[width=0.5\textwidth]{plots/ZDIJET_GMSB.pdf} |
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\caption{ Interpretation of the targeted analysis in the GMSB \zzmet\ model. |
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%\newline |
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%Interpretation of the $\rm{Z}+\rm{dijet}$ analysis in the GMSB model discussed in the text. |
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%The observed and expected cross section upper limits are indicated as a function of the mass parameter $\mu$, and are compared to the theory |
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%cross section. The region $196 < \mu < 316$~GeV is excluded at 95\% confidence level. |
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\label{fig:results_gmsb}} |
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\end{center} |
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\end{figure} |
