| 1 |
benhoob |
1.1 |
\clearpage
|
| 2 |
|
|
|
| 3 |
|
|
\section{Data vs. MC Comparison in Preselection Region}
|
| 4 |
|
|
\label{sec:yields}
|
| 5 |
|
|
|
| 6 |
|
|
In this section we compare the data and MC samples passing the selection described in Sec.~\ref{sec:eventSelection}
|
| 7 |
benhoob |
1.4 |
In the following, the MC is reweighted to match the data distribution of number of reconstructed primary vertices.
|
| 8 |
|
|
%{\bf FIXME: UPDATE TO 5.1/fb VTX-REWEIGHTING, CURRENTLY USING OUTDATED FUNCTION}.
|
| 9 |
benhoob |
1.1 |
The trigger efficiencies of Sec.~\ref{sec:datasets} are applied. In all plots, the last bin contains the overflow.
|
| 10 |
|
|
|
| 11 |
|
|
We begin by counting the inclusive Z yields. Here we require the presence of two selected leptons without
|
| 12 |
|
|
any additional requirements on jets or \MET. In Fig.~\ref{fig:dilmass} the distribution of dilepton invariant
|
| 13 |
|
|
mass in the ee and $\mu\mu$ channels is displayed. In Table~\ref{table:zyields} the yields for selected dilepton
|
| 14 |
|
|
events in the Z mass window are indicated. Good data vs. MC agreement is observed, within the systematic uncertainties
|
| 15 |
|
|
of integrated luminosity (4.5\%), trigger efficiency (3\%), \zjets\ and \ttbar\ cross sections.
|
| 16 |
|
|
|
| 17 |
|
|
\begin{figure}[hbt]
|
| 18 |
|
|
\begin{center}
|
| 19 |
|
|
\includegraphics[width=1.0\linewidth]{plots/dilmass_ee_mm.pdf}
|
| 20 |
|
|
\caption{
|
| 21 |
|
|
\label{fig:dilmass}\protect
|
| 22 |
|
|
Dilepton mass distribution for events with two selected leptons
|
| 23 |
benhoob |
1.2 |
in the ee (left) and $\mu\mu$ (right) final states.}
|
| 24 |
benhoob |
1.1 |
\end{center}
|
| 25 |
|
|
\end{figure}
|
| 26 |
|
|
|
| 27 |
|
|
|
| 28 |
|
|
\begin{table}[htb]
|
| 29 |
|
|
\begin{center}
|
| 30 |
benhoob |
1.5 |
\caption{\label{table:zyields} Data and Monte Carlo yields for events with two selected leptons in the Z mass window
|
| 31 |
|
|
(\bf updated to \lumi).
|
| 32 |
benhoob |
1.1 |
}
|
| 33 |
|
|
\begin{tabular}{lccccc}
|
| 34 |
|
|
\hline
|
| 35 |
|
|
\hline
|
| 36 |
|
|
Sample & ee & $\mu\mu$ & e$\mu$ & total \\
|
| 37 |
|
|
\hline
|
| 38 |
benhoob |
1.5 |
|
| 39 |
|
|
%Loading babies at : ../output/V00-01-04
|
| 40 |
|
|
%Using selection : (((((isdata==0 || (run<197556 || run>198913))&&(((leptype==0 && (ee==1 || isdata==0))||(leptype==1 && (mm==1 || isdata==0)))||(leptype==2 && (em==1||me==1||isdata==0))))&&(csc==0 && hbhe==1 && hcallaser==1 && ecaltp==1 && trkfail==1 && eebadsc==1 && hbhenew==1))&&(lep1.pt()>20.0 && lep2.pt()>20.0))&&(dilmass>15.0))&&(dilmass>81 && dilmass<101)
|
| 41 |
|
|
%Using weight : weight * 9.2 * trgeff * vtxweight
|
| 42 |
|
|
|
| 43 |
|
|
\zjets &22662501 $\pm$ 1660 &3125059 $\pm$ 1873 &1082 $\pm$ 35.8 &5392392 $\pm$ 2503 \\
|
| 44 |
|
|
\ttbar &1579.1 $\pm$ 22.6 &1998.3 $\pm$ 24.4 &3592.2 $\pm$ 33.5 &7169.5 $\pm$ 47.2 \\
|
| 45 |
|
|
WW &290.6 $\pm$ 2.9 &387.2 $\pm$ 3.3 &671.2 $\pm$ 4.4 &1349.0 $\pm$ 6.2 \\
|
| 46 |
|
|
WZ &2052.6 $\pm$ 3.6 &2686.9 $\pm$ 3.9 & 54.1 $\pm$ 0.5 &4793.5 $\pm$ 5.3 \\
|
| 47 |
|
|
ZZ &1294.6 $\pm$ 2.7 &1708.5 $\pm$ 3.0 & 5.2 $\pm$ 0.1 &3008.3 $\pm$ 4.0 \\
|
| 48 |
|
|
single top &150.0 $\pm$ 5.9 &192.6 $\pm$ 6.4 &332.9 $\pm$ 8.6 &675.5 $\pm$ 12.2 \\
|
| 49 |
|
|
\hline
|
| 50 |
|
|
total SM MC &2271617 $\pm$ 1661 &3132032 $\pm$ 18723 &5738 $\pm$ 50.0 &5409387 $\pm$ 2503 \\
|
| 51 |
benhoob |
1.1 |
\hline
|
| 52 |
benhoob |
1.5 |
data & 2329993 & 3169480 & 6182 & 5505655 \\
|
| 53 |
benhoob |
1.1 |
\hline
|
| 54 |
|
|
\hline
|
| 55 |
|
|
\end{tabular}
|
| 56 |
|
|
\end{center}
|
| 57 |
|
|
\end{table}
|
| 58 |
|
|
|
| 59 |
|
|
\clearpage
|
| 60 |
|
|
|
| 61 |
benhoob |
1.2 |
We next define the preselection region for the inclusive search using the following requirements:
|
| 62 |
benhoob |
1.1 |
\begin{itemize}
|
| 63 |
benhoob |
1.2 |
\item Number of jets $\geq$ 2;
|
| 64 |
|
|
\item Same flavor dileptons (opposite flavor yields will be shown since they are used in data for the FS background estimation);
|
| 65 |
|
|
\item Dilepton invariant mass $81<m_{\ell\ell}<101$ GeV.
|
| 66 |
benhoob |
1.1 |
\end{itemize}
|
| 67 |
|
|
|
| 68 |
benhoob |
1.2 |
The dilepton mass distributions in the preselection region of the inclusive search (without the dilepton mass requirement applied)
|
| 69 |
benhoob |
1.5 |
for the ee and $\mu\mu$ final states are shown in Figure~\ref{fig:dilmass_2j}. In Table~\ref{table:zyields_2j} the data and MC yields
|
| 70 |
|
|
in thepreselection region are indicated. Good data vs. MC agreement is observed.
|
| 71 |
benhoob |
1.1 |
|
| 72 |
|
|
|
| 73 |
|
|
\begin{figure}[hbt]
|
| 74 |
|
|
\begin{center}
|
| 75 |
|
|
\includegraphics[width=1.0\linewidth]{plots/dilmass_ee_mm_2j.pdf}
|
| 76 |
|
|
\caption{
|
| 77 |
|
|
\label{fig:dilmass_2j}\protect
|
| 78 |
benhoob |
1.2 |
Dilepton mass distribution for events in the preselection region of the inclusive search
|
| 79 |
|
|
in the ee (left) and $\mu\mu$ (right) final states.}
|
| 80 |
benhoob |
1.1 |
\end{center}
|
| 81 |
|
|
\end{figure}
|
| 82 |
|
|
|
| 83 |
|
|
\begin{table}[htb]
|
| 84 |
|
|
\begin{center}
|
| 85 |
benhoob |
1.2 |
\caption{\label{table:zyields_2j} Data and MC yields in the preselection region of the inclusive search.
|
| 86 |
benhoob |
1.1 |
}
|
| 87 |
|
|
\begin{tabular}{lccccc}
|
| 88 |
|
|
\hline
|
| 89 |
|
|
\hline
|
| 90 |
|
|
Sample & ee & $\mu\mu$ & e$\mu$ & total \\
|
| 91 |
|
|
\hline
|
| 92 |
|
|
\zjets & 53187.8 $\pm$ 988.5 &78070.5 $\pm$ 1165.7 & 5.6 $\pm$ 3.6 &131264.0 $\pm$ 1528.4 \\
|
| 93 |
|
|
\ttbar & 645.3 $\pm$ 17.7 &865.1 $\pm$ 19.7 &1470.4 $\pm$ 25.8 &2980.8 $\pm$ 37.0 \\
|
| 94 |
|
|
WZ & 431.2 $\pm$ 2.4 &594.6 $\pm$ 2.7 & 5.8 $\pm$ 0.2 &1031.6 $\pm$ 3.6 \\
|
| 95 |
|
|
ZZ & 269.9 $\pm$ 1.6 &377.7 $\pm$ 1.8 & 0.5 $\pm$ 0.0 &648.1 $\pm$ 2.4 \\
|
| 96 |
|
|
WW & 15.2 $\pm$ 0.8 & 22.2 $\pm$ 0.9 & 38.9 $\pm$ 1.3 & 76.4 $\pm$ 1.7 \\
|
| 97 |
|
|
single top & 28.8 $\pm$ 3.2 & 38.0 $\pm$ 3.4 & 72.0 $\pm$ 4.9 &138.8 $\pm$ 6.7 \\
|
| 98 |
|
|
\hline
|
| 99 |
|
|
total SM MC & 54578.1 $\pm$ 988.7 &79968.3 $\pm$ 1165.9 &1593.3 $\pm$ 26.5 &136139.7 $\pm$ 1528.9 \\
|
| 100 |
|
|
data & 54426 & 80367 & 1565 & 136358 \\
|
| 101 |
|
|
|
| 102 |
|
|
\hline
|
| 103 |
|
|
\hline
|
| 104 |
|
|
\end{tabular}
|
| 105 |
|
|
\end{center}
|
| 106 |
|
|
\end{table}
|
| 107 |
|
|
|
| 108 |
|
|
|
| 109 |
|
|
\clearpage
|
| 110 |
|
|
|
| 111 |
benhoob |
1.2 |
We next define the preselection region for the targeted search by adding the following requirements:
|
| 112 |
|
|
\begin{itemize}
|
| 113 |
|
|
\item Veto events containing a b-tagged jet;
|
| 114 |
|
|
\item Dijet invariant mass $70<m_{jj}<110$ GeV;
|
| 115 |
benhoob |
1.4 |
\item Veto events containing a third selected lepton (electron or muon) with \pt $>$ 20 GeV; %{\bf FIXME: lower third lepton \pt threshold to 10 GeV}.
|
| 116 |
benhoob |
1.2 |
\end{itemize}
|
| 117 |
|
|
|
| 118 |
|
|
The rejection of events with a b-tagged jet strongly suppresses the \ttbar\ background, which is the dominant background in the inclusive search
|
| 119 |
|
|
after requiring large \MET. The requirement that the jet pair is consistent with originating from W/Z decay is motivated by the fact that we are
|
| 120 |
|
|
searching for signatures producing V(jj)Z($\ell\ell$)+\MET; this requirement suppresses the \zjets\ and \ttbar\ backgrounds. The veto of events
|
| 121 |
|
|
containting a third electron or muon suppresses the WZ background, and also serves to make this analyis exclusive with respect to searches in
|
| 122 |
|
|
the trilepton final state.
|
| 123 |
|
|
|
| 124 |
|
|
The dilepton mass distributions in the preselection region of the targeted search (without the dilepton mass requirement applied)
|
| 125 |
|
|
for the ee and $\mu\mu$ final states are shown in Figure~\ref{fig:dilmass_2j_targeted}. In Table~\ref{table:zyields_2j_targeted}
|
| 126 |
|
|
the data and MC yields in the preselection region are indicated. Good data vs. MC agreement is observed.
|
| 127 |
benhoob |
1.4 |
We also show the distribution of dijet mass in the targeted preselection (with the requirement on this quantity removed) in Fig.~\ref{fig:mjj},
|
| 128 |
|
|
which demonstrates that the MC does a reasonable job of modeling this quantity.
|
| 129 |
benhoob |
1.2 |
|
| 130 |
|
|
\begin{figure}[hbt]
|
| 131 |
|
|
\begin{center}
|
| 132 |
|
|
\includegraphics[width=1.0\linewidth]{plots/dilmass_ee_mm_2j_targeted.pdf}
|
| 133 |
|
|
\caption{
|
| 134 |
|
|
\label{fig:dilmass_2j_targeted}\protect
|
| 135 |
|
|
Dilepton mass distribution for events in the preselection region of the targeted search
|
| 136 |
|
|
in the ee (left) and $\mu\mu$ (right) final states.}
|
| 137 |
|
|
\end{center}
|
| 138 |
|
|
\end{figure}
|
| 139 |
|
|
|
| 140 |
|
|
\begin{table}[htb]
|
| 141 |
|
|
\begin{center}
|
| 142 |
|
|
\caption{\label{table:zyields_2j_targeted} Data and MC yields in the preselection region of the inclusive search.
|
| 143 |
|
|
}
|
| 144 |
|
|
\begin{tabular}{lccccc}
|
| 145 |
|
|
\hline
|
| 146 |
|
|
\hline
|
| 147 |
|
|
Sample & ee & $\mu\mu$ & e$\mu$ & total \\
|
| 148 |
|
|
\hline
|
| 149 |
|
|
\zjets &14108.9 $\pm$ 486.3 &21927.1 $\pm$ 606.4 & 0.0 $\pm$ 0.0 &36036.0 $\pm$ 777.4 \\
|
| 150 |
|
|
\ttbar & 21.0 $\pm$ 2.9 & 33.4 $\pm$ 3.9 & 53.7 $\pm$ 5.0 &108.0 $\pm$ 6.9 \\
|
| 151 |
|
|
WZ &135.6 $\pm$ 1.4 &188.5 $\pm$ 1.6 & 1.0 $\pm$ 0.1 &325.1 $\pm$ 2.1 \\
|
| 152 |
|
|
ZZ &106.0 $\pm$ 1.0 &148.8 $\pm$ 1.2 & 0.1 $\pm$ 0.0 &254.9 $\pm$ 1.5 \\
|
| 153 |
|
|
WW & 3.4 $\pm$ 0.4 & 4.1 $\pm$ 0.4 & 7.8 $\pm$ 0.5 & 15.2 $\pm$ 0.7 \\
|
| 154 |
|
|
single top & 2.0 $\pm$ 0.8 & 2.8 $\pm$ 1.1 & 5.5 $\pm$ 1.4 & 10.3 $\pm$ 1.9 \\
|
| 155 |
|
|
\hline
|
| 156 |
|
|
total SM MC &14376.9 $\pm$ 486.3 &22304.7 $\pm$ 606.5 & 68.0 $\pm$ 5.2 &36749.6 $\pm$ 777.4 \\
|
| 157 |
|
|
data & 14647 & 21840 & 74 & 36561 \\
|
| 158 |
|
|
\hline
|
| 159 |
|
|
\hline
|
| 160 |
|
|
\end{tabular}
|
| 161 |
|
|
\end{center}
|
| 162 |
|
|
\end{table}
|
| 163 |
|
|
|
| 164 |
|
|
|
| 165 |
|
|
\clearpage
|
| 166 |
|
|
|
| 167 |
benhoob |
1.4 |
\begin{figure}[hbt]
|
| 168 |
|
|
\begin{center}
|
| 169 |
|
|
\includegraphics[width=1.0\linewidth]{plots/mjj.pdf}
|
| 170 |
|
|
\caption{
|
| 171 |
|
|
\label{fig:mjj}\protect
|
| 172 |
|
|
Distributions of dijet mass for the targeted preselection in the ee (left), $\mu\mu$ (middle) and e$\mu$ (right) final state.}
|
| 173 |
|
|
\end{center}
|
| 174 |
|
|
\end{figure}
|
| 175 |
benhoob |
1.1 |
|
| 176 |
|
|
|
| 177 |
|
|
|
| 178 |
|
|
|
| 179 |
|
|
|
