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\section{Event reconstruction} |
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\label{sec:eventReconstruction} |
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The four possible final states of \WZ |
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production with electrons and muons in the final state are studied, $\rm e^\pm \epem$, $\mu^\pm \epem$, $\rm e^\pm \mu^+\mu^-$ |
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and $\mu^\pm \mu^+\mu^-$. They are associated to four possible classes, |
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denoted as follows: |
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We categorize \WZ\ three-lepton final state as following |
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\begin{itemize} |
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\item $3e$: for \WZ events with $\W \to e \nu$ and $\Z\to \epem$. |
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\item $2e1\mu$: for \WZ events with $\W \to \mu \nu$ and $\Z\to \epem$. |
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are collected by the electron and/or muon triggers. For each channel, |
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a minimun number of HLT requirements is chosen while keeping |
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the HLT efficiency for selected events close to 100\%. The same |
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HLT requirements are used for channels with the same Z decay mode: |
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HLT requirements are used for channels with the same \Z decay mode: |
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\begin{itemize} |
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\item for $3e$ and $2e1\mu$: HLTSingleElectron or HLTDoubleElectronRelaxed |
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\item for $2\mu1e$ and $3\mu$: HLTSingleMuonIso |
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The HLT efficiencies for all modes for events passing the full |
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selection described in this section are given in table~\ref{tab:hlteff}. |
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\begin{table}[tbph] |
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\begin{center} |
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\end{center} |
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\caption{HLT Efficiencies, in percent, for all |
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the events in the generated phase space for events retained by |
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the events in the generated phase space that have been retained by |
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the complete event selection.} |
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\label{tab:hlteff} |
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\end{table} |
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\begin{figure}[tbp] |
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\begin{center} |
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\scalebox{0.7}{\includegraphics{figs/mu_isol.eps}} |
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\caption{Muon isolation variables for the muon associated |
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to the \W boson decay in $2e1\mu$ events: in the left plot |
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we illustrate the sum of calorimetric energy in a $\Delta R=0.3$ cone |
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around the muon candidate; in the right plot we display the sum of |
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transverse momenta of tracks within a $\Delta R = 0.25$ cone around |
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the muon candidate. The normalization of signal and background |
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distributions is arbitrary. |
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} |
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\label{fig:mu_isol} |
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\end{center} |
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\end{figure} |
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|
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\begin{figure}[tb] |
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\begin{center} |
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\scalebox{0.6}{\includegraphics{figs/mu_SIP.eps}} |
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\caption{ |
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Muon impact parameter significance distribution |
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in $2e1\mu$ events. The normalization of signal and background |
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distributions is arbitrary. |
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} |
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\label{fig:mu_SIP} |
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\end{center} |
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\end{figure} |
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\subsection{Lepton identification} |
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\label{sec:leptonId} |
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in~\cite{noteElectronID}. |
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Muon candidates are selected from global muons, which are reconstructed |
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combining measurements in the muon chambers and the central tracker. |
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An additional isolation criterion requires that the energy |
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by combining measurements in the muon chambers and the central tracker. |
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An additional isolation criterion is imposed to require the energy |
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measured in the calorimeters within a $\Delta R = 0.3$ cone around the |
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muon must be smaller than 3 GeV and the sum of the $p_t$ of tracks |
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within a $\Delta R = 0.25$ cone around the muon must be smaller than 2 \gev. |
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muon to be smaller than 3 GeV and the sum of the $p_T$ of tracks |
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within a $\Delta R = 0.25$ cone around the muon must be smaller than 2 GeV. |
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These cuts reduce the background from muons originated in |
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\b-quark decays of the $\Zbbbar$ background, which are close to tracks |
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and clusters from the other \b-quark decay products. |
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The significance of the muon impact parameter in the plane |
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transverse to the beam, $S_{IP}$, discriminates against leptons from |
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heavy-quark decays in all Standard Model background processes. This |
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heavy-quark decays in all standard model background processes. This |
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variable is defined as the ratio between the measured impact parameter |
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and its uncertainty: $S_{IP}=IP/\sigma_{IP}$, and is required to |
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satisfy $S_{IP}<3$. This requirement is applied only for muons |
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and not for electrons. For electrons, the dominant background |
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comes from fake electrons and not from heavy quark decays. |
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satisfy $S_{IP}<3$. This requirement is applied only for muon candidates |
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and not for electrons. For electron candidates, a significant fraction of the |
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background comes from misidentified light quark jets. Thus, |
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the requirement on the impact parameter significance does not |
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increase the significance of the $\W\to e$ channels, as can be seen in |
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Fig.~\ref{fig:wl_IP_SvsCut}. |
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|
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\begin{figure}[p] |
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\begin{center} |
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\scalebox{0.6}{\includegraphics{figs/wl_IP_eff.eps}} |
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\caption{Efficiency for signal and background as a function |
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of the requirement on the \W-boson lepton impact parameter |
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significance. All other criteria but the one on impact parameter |
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significance are applied. |
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% Only events with 81.1 GeV $< M_Z < $ 101.1 \gev |
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% are considered. |
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} |
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\label{fig:wl_IP_eff} |
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\end{center} |
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%\end{figure} |
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|
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%\begin{figure}[bt] |
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\begin{center} |
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\scalebox{0.6}{\includegraphics{figs/wl_IP_SvsCut.eps}} |
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\caption{Signal significance as a function of requirement on |
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the \W-boson lepton impact parameter significance. All other criteria but |
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the requirement on the impact parameter significance are applied. |
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% Only events with 81.1 GeV $< M_Z < $ 101.1 \gev are considered. |
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} |
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\label{fig:wl_IP_SvsCut} |
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\end{center} |
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\end{figure} |
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\begin{table}[tbp] |
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rejected if a second Z candidate is found. This second Z candidate is done |
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with all possible same-flavour opposite-charge combinations which are left |
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after removing the two leptons already used for the first Z candidate. This |
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veto on the presence of a second Z helps to suppress $ZZ$ events. The invariant |
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mass distribution for accepted \Z candidates is shown in |
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Figure~\ref{fig:zcandidates}. |
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veto on the presence of a second Z helps to suppress $ZZ$ events. |
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%The invariant |
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%mass distribution for accepted \Z candidates is shown in |
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%Figure~\ref{fig:zcandidates}. |
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|
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% and the \Z mass resolution is shown in |
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%Figure~\ref{fig:dzmass}. |
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as electrons, possibly after conversion, which shows up as a peak at around 60 GeV |
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in the Z mass distribution, as shown in figure~\ref{fig:Z2mu1e_60GeVPeak}. |
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The summary of the selection can be seen in Table~\ref{tab:allcuts}. |
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The summary of the selection is given in Table~\ref{tab:allcuts}. |
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The expected number of events passing the various steps of the selection |
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is listed in Tables~\ref{tab:sel-effA} and~\ref{tab:sel-effB}. |
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is listed in Tables~\ref{tab:sel-effA}. |
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Table~\ref{tab:wz-effimatrix} lists the final selection efficiency for |
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the different generated \W and \Z decays. It can be seen there that \WZ\ |
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events with both the \W and the \Z boson decaying into electrons or muons |
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to the \pt cut on the third lepton, since the \pt spectrum of electrons or |
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muons from $W \to \tau \to e/\mu$ decays is softer. |
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Tables~ref\label{tab:wz-matcheffi-Zee} and \label{tab:wz-matcheffi-Zmumu} show |
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the fraction of reconstructed \WZ events with with correclty matched leptons |
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It is in particular worth mentioning that the lepton associated to the \W-decay |
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is correclty matched to the true lepton from the \W-decay in more than 90\% of |
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the cases even for events with several lepton candidates available to be associated |
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to the \W-decay. The choice to take the candidate with the leading \pt is therefore |
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justified. |
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|
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\begin{table}[p] |
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\begin{center} |
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\begin{tabular}{lcccc} \hline |
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Step & WZ & Z+jets & TTbar+jets & bbll\\ \hline |
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All events & 546 & 1.2679e+06 & 17556.1 & 72770.4 \\ |
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Found $Z \to ee$ & 219.517 (40.2045 \%) & 520695 (41.0674 \%) & 3474.61 (19.7914 \%) & 29563.3 (40.6254 \%) \\ |
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Z loose electron ID & 219.517 (100 \%) & 520695 (100 \%) & 3474.61 (100 \%) & 29563.3 (100 \%) \\ |
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Z Lepton Pt cut & 216.371 (98.5671 \%) & 515556 (99.0131 \%) & 3289.22 (94.6645 \%) & 29109.9 (98.4665 \%) \\ |
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Z Lepton $eta$ cut & 216.371 (100 \%) & 515556 (100 \%) & 3289.22 (100 \%) & 29109.9 (100 \%) \\ |
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Z Lepton IP cut & 206.797 (95.5751 \%) & 492205 (95.4707 \%) & 3011.11 (91.5448 \%) & 27833.5 (95.6153 \%) \\ |
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Found $W \to e$ & 42.8968 (20.7434 \%) & 301.116 (0.061177 \%) & 14.8797 (0.494158 \%) & 173.054 (0.621745 \%) \\ |
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W Lepton $\eta$ cut & 42.8968 (100 \%) & 301.116 (100 \%) & 14.8797 (100 \%) & 173.054 (100 \%) \\ |
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W Lepton Pt cut & 35.6425 (83.0889 \%) & 86.9864 (28.8879 \%) & 9.30549 (62.5383 \%) & 23.9385 (13.833 \%) \\ |
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W tight electron ID & 35.6425 (100 \%) & 86.9864 (100 \%) & 9.30549 (100 \%) & 23.9385 (100 \%) \\ |
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Passes HLT & 35.4852 (99.5587 \%) & 85.9427 (98.8002 \%) & 9.30549 (100 \%) & 23.4938 (98.1424 \%) \\ |
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Z mass window & 31.7106 (5.8078 \%) & 54.1554 (0.00427126 \%) & 3.2585 (0.0185605 \%) & 17.046 (0.0234243\%) \\ |
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\multicolumn{5}{c}{ {\bf $3e$ Channel}} \\ \hline \hline |
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Step & WZ & bbll & Z+jets & TTbar+jets\\ \hline |
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All events & 546 & 72770.4 & 1.2679e+06 & 17556.1 \\ |
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Found $Z \to ee$ & 204.969 (37.5401 \%) & 27800.5 (38.203 \%) & 502344 (39.62 \%) & 2920.59 (16.6357 \%) \\ |
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Found $W \to e$ & 41.9925 (20.4872 \%) & 171.053 (0.615286 \%) & 309.563 (0.0616238 \%) & 13.8293 (0.473511 \%) \\ |
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W Lepton Pt cut & 34.8561 (83.0056 \%) & 23.7161 (13.8648 \%) & 86.7924 (28.037 \%) & 8.25515 (59.6931 \%) \\ |
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Passes HLT & 34.7185 (99.6052 \%) & 23.5679 (99.375 \%) & 86.7924 (100 \%) & 8.25515 (100 \%) \\ |
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Z mass window & 31.5533 (90.8834 \%) & 17.4906 (74.2138 \%) & 51.8927 (59.7894 \%) & 3.2585 (39.4724 \%) \\ \hline |
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Overall efficiency & 5.77899 \% & 0.0240354 \% & 0.00409279 \% & 0.0185605 \% \\ |
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\hline |
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\end{tabular} |
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|
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\begin{tabular}{lcccc} \hline |
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Step & WZ & Z+jets & TTbar+jets & bbll\\ \hline |
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All events & 546 & 1.2679e+06 & 17556.1 & 72770.4 \\ |
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Found $Z \to ee$ & 219.517 (40.2045 \%) & 520695 (41.0674 \%) & 3474.61 (19.7914 \%) & 29563.3 (40.6254 \%) \\ |
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Z electron ID loose & 219.517 (100 \%) & 520695 (100 \%) & 3474.61 (100 \%) & 29563.3 (100 \%) \\ |
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Z Lepton Pt cut & 216.371 (98.5671 \%) & 515556 (99.0131 \%) & 3289.22 (94.6645 \%) & 29109.9 (98.4665 \%) \\ |
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Z Lepton $eta$ cut & 216.371 (100 \%) & 515556 (100 \%) & 3289.22 (100 \%) & 29109.9 (100 \%) \\ |
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Z Lepton IP cut & 206.797 (95.5751 \%) & 492205 (95.4707 \%) & 3011.11 (91.5448 \%) & 27833.5 (95.6153 \%) \\ |
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Found $W \to \mu$ & 57.1892 (27.6547 \%) & 5982.86 (1.21552 \%) & 815.122 (27.0705 \%) & 3808.22 (13.6821 \%) \\ |
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W Lepton $\eta$ cut & 57.1695 (99.9656 \%) & 5964.1 (99.6865 \%) & 815.122 (100 \%) & 3805.62 (99.9319 \%) \\ |
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W $\mu$ isolation & 52.1367 (91.1967 \%) & 2754.29 (46.1811 \%) & 85.5097 (10.4904 \%) & 1328.18 (34.9004 \%) \\ |
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W muon isolation & 39.8889 (76.5083 \%) & 22.2149 (0.806557 \%) & 18.8521 (22.0468 \%) & 16.6013 (1.24993 \%) \\ |
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Passes HLT & 38.7683 (97.1907 \%) & 21.2077 (95.466 \%) & 16.5627 (87.8556 \%) & 16.1566 (97.3214 \%) \\ |
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Z mass window & 34.6399 (6.34429 \%) & 17.3805 (0.00137081 \%) & 5.4405 (0.0309891 \%) & 14.0814 (0.0193505 \%) \\ |
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\multicolumn{5}{c}{ {\bf $2e1\mu$ Channel}} \\ \hline \hline |
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Step & WZ & bbll & Z+jets & \ttjets\\ \hline |
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All events & 546 & 72770.4 & 1.2679e+06 & 17556.1 \\ |
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Found $Z \to ee$ & 204.969 (37.5401 \%) & 27800.5 (38.203 \%) & 502344 (39.62 \%) & 2920.59 (16.6357 \%) \\ |
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Found $W \to \mu$ & 47.9099 (23.3743 \%) & 747.725 (2.68961 \%) & 2194.09 (0.436771 \%) & 56.7645 (1.9436 \%) \\ |
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W Lepton Pt cut & 37.0973 (77.4313 \%) & 9.63467 (1.28853 \%) & 9.57604 (0.436446 \%) & 17.5382 (30.8965 \%) \\ |
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Passes HLT & 36.1929 (97.5623 \%) & 9.26411 (96.1538 \%) & 8.32189 (86.9033 \%) & 15.2488 (86.9457 \%) \\ |
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Z mass window & 32.5166 (89.8425 \%) & 8.15242 (88 \%) & 7.31467 (87.8968 \%) & 4.91533 (32.2343 \%) \\ \hline |
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Overall efficiency & 5.95542 \% & 0.0112029 \% & 0.000576911 \% & 0.0279978 \% \\ |
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\hline |
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\end{tabular} |
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|
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\begin{tabular}{lcccc} \hline |
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Step & WZ & Z+jets & TTbar+jets & bbll\\ \hline |
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All events & 546 & 1.2679e+06 & 17556.1 & 72770.4 \\ |
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Found $Z \to \mu\mu$ & 326.484 (59.7955 \%) & 748256 (59.0152 \%) & 14081.6 (80.2087 \%) & 43207.1 (59.3746 \%) \\ |
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Z muon isolation & 282.27 (86.4575 \%) & 669556 (89.4822 \%) & 4201.52 (29.837 \%) & 37959.1 (87.8538 \%) \\ |
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Z Lepton $eta$ cut & 282.27 (100 \%) & 669547 (99.9987 \%) & 4200.47 (99.975 \%) & 37959.1 (99.9998 \%) \\ |
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Z Lepton Pt cut & 274.249 (97.1584 \%) & 657267 (98.1659 \%) & 3626.81 (86.3429 \%) & 36945.8 (97.3306 \%) \\ |
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Z Lepton IP cut & 249.792 (91.0824 \%) & 603257 (91.7827 \%) & 3125.35 (86.1737 \%) & 33937.7 (91.8581 \%) \\ |
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Found $W \to e$ & 51.9401 (20.7933 \%) & 797.766 (0.132243 \%) & 20.4415 (0.654055 \%) & 228.342 (0.672826 \%) \\ |
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W Lepton $\eta$ cut & 51.9401 (100 \%) & 797.766 (100 \%) & 20.4415 (100 \%) & 228.342 (100 \%) \\ |
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W tight electron ID & 51.9401 (100 \%) & 797.766 (100 \%) & 20.4415 (100 \%) & 228.342 (100 \%) \\ |
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W Lepton Pt cut & 43.2703 (83.3081 \%) & 519.647 (65.1378 \%) & 15.0823 (73.7829 \%) & 55.14 (24.148 \%)\\ |
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Passes HLT & 41.8745 (96.7742 \%) & 490.859 (94.46 \%) & 13.533 (89.7275 \%) & 54.2506 (98.3871 \%) \\ |
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Z mass window & 37.5298 (6.87358 \%) & 63.522 (0.00501 \%) & 5.02282 (0.02861 \%) & 20.0105 (0.0274981 \%) \\ |
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\multicolumn{5}{c}{ {\bf $2\mu1e$ Channel}} \\ \hline \hline |
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Step & WZ & bbll & Z+jets & TTbar+jets\\ \hline |
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All events & 546 & 72770.4 & 1.2679e+06 & 17556.1 \\ |
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Found $Z \to \mu\mu$ & 233.75 (42.8114 \%) & 31889.4 (43.8219 \%) & 577257 (45.5284 \%) & 2778.81 (15.8282 \%) \\ |
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Found $W \to e$ & 48.7553 (20.8579 \%) & 213.519 (0.669562 \%) & 701.695 (0.121557 \%) & 15.1085 (0.543704 \%) \\ |
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W Lepton Pt cut & 40.6556 (83.3871 \%) & 50.6191 (23.707 \%) & 464.493 (66.196 \%) & 10.2745 (68.0047 \%) \\ |
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$\Delta R(e,\mu)$ cut & 40.5573 (99.7582 \%) & 23.3456 (46.1201 \%) & 92.9813 (20.0178 \%) & 7.14967 (69.5865 \%) \\ |
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Passes HLT & 39.4171 (97.1886 \%) & 23.1973 (99.3651 \%) & 88.7791 (95.4806 \%) & 6.6245 (92.6546 \%) \\ |
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Z mass window & 35.5638 (90.2244 \%) & 18.8988 (81.4696 \%) & 50.2509 (56.6022 \%) & 2.84083 (42.8837 \%) \\ \hline |
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Overall efficiency & 6.51352 \% & 0.0259704 \% & 0.00396331 \% & 0.0161814 \% \\ |
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\hline |
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\end{tabular} |
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|
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\begin{tabular}{lcccc} \hline |
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Step & WZ & Z+jets & TTbar+jets & bbll\\ \hline |
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All events & 546 & 1.2679e+06 & 17556.1 & 72770.4 \\ |
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Found $Z \to \mu\mu$ & 326.484 (59.7955 \%) & 748256 (59.0152 \%) & 14081.6 (80.2087 \%) & 43207.1 (59.3746 \%) \\ |
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Z muon isolation & 282.27 (86.4575 \%) & 669556 (89.4822 \%) & 4201.52 (29.837 \%) & 37959.1 (87.8538 \%) \\ |
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Z Lepton $eta$ cut & 282.27 (100 \%) & 669547 (99.9987 \%) & 4200.47 (99.975 \%) & 37959.1 (99.9998 \%) \\ |
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Z Lepton Pt cut & 274.249 (97.1584 \%) & 657267 (98.1659 \%) & 3626.81 (86.3429 \%) & 36945.8 (97.3306 \%) \\ |
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Z Lepton IP cut & 249.792 (91.0824 \%) & 603257 (91.7827 \%) & 3125.35 (86.1737 \%) & 33937.7 (91.8581 \%) \\ |
| 307 |
< |
Found $W \to \mu$ & 73.015 (29.2303 \%) & 7135.7 (1.18286 \%) & 774.076 (24.7677 \%) & 4435.51 (13.0696 \%) \\ |
| 308 |
< |
W Lepton $\eta$ cut & 72.956 (99.9192 \%) & 7110.07 (99.6409 \%) & 774.076 (100 \%) & 4432.32 (99.9282 \%) \\ |
| 256 |
< |
W $\mu$ isolation & 66.724 (91.4578 \%) & 3382.99 (47.5803 \%) & 78.3017 (10.1155 \%) & 1560.97 (35.2178 \%) \\ |
| 257 |
< |
W muon isolation & 50.1118 (75.1031 \%) & 6.25174 (0.184799 \%) & 5.8096 (7.41951 \%) & 20.6775 (1.32466 \%) \\ |
| 258 |
< |
Passes HLT & 49.7972 (99.3723 \%) & 6.25174 (100 \%) & 5.8096 (100 \%) & 20.6034 (99.6416 \%) \\ |
| 259 |
< |
Z mass window & 45.1576 (8.27062 \%) & 4.9976 (0.000394162 \%) & 1.683 (0.00958638 \%) & 18.3059 (0.0251557 \%) \\ |
| 300 |
> |
\multicolumn{5}{c}{ {\bf $3\mu$ Channel}} \\ \hline \hline |
| 301 |
> |
Step & WZ & bbll & Z+jets & TTbar+jets\\ \hline |
| 302 |
> |
All events & 546 & 72770.4 & 1.2679e+06 & 17556.1 \\ |
| 303 |
> |
Found $Z \to \mu\mu$ & 233.75 (42.8114 \%) & 31889.4 (43.8219 \%) & 577257 (45.5284 \%) & 2778.81 (15.8282 \%) \\ |
| 304 |
> |
Found $W \to \mu$ & 57.7986 (24.7267 \%) & 810.721 (2.54229 \%) & 2520.69 (0.436668 \%) & 35.3061 (1.27054 \%) \\ |
| 305 |
> |
W Lepton Pt cut & 44.2533 (76.5646 \%) & 8.89355 (1.09699 \%) & 1.84115 (0.0730414 \%) & 1.683 (4.76688 \%) \\ |
| 306 |
> |
Passes HLT & 43.9977 (99.4225 \%) & 8.89355 (100 \%) & 1.84115 (100 \%) & 1.683 (100 \%) \\ |
| 307 |
> |
Z mass window & 40.0462 (91.0188 \%) & 7.78185 (87.5 \%) & 1.84115 (100 \%) & 1.15783 (68.7957 \%) \\ \hline |
| 308 |
> |
Overall efficiency & 7.33446 \% & 0.0106937 \% & 0.000145212 \% & 0.00659501 \% \\ |
| 309 |
|
\hline |
| 310 |
|
\end{tabular} |
| 311 |
+ |
|
| 312 |
+ |
|
| 313 |
|
\caption{Expected number of signal and background events passing the different |
| 314 |
< |
selections steps in the \WZ, \ttbar and \Zbbbar samples for an integrated luminosity |
| 314 |
> |
selections steps in the \WZ, \Zbbbar, \Zjets and \ttjets samples for an integrated luminosity |
| 315 |
|
of 1 \invfb.} |
| 316 |
|
\label{tab:sel-effA} |
| 317 |
|
\end{center} |
| 318 |
|
\end{table} |
| 319 |
|
|
| 320 |
< |
|
| 270 |
< |
|
| 271 |
< |
\subsection{Signal extraction} |
| 272 |
< |
|
| 273 |
< |
\input D0Matrix |
| 274 |
< |
\input zjetbackground |
| 275 |
< |
|
| 276 |
< |
|
| 277 |
< |
\subsection{Systematic uncertainties} |
| 278 |
< |
\input Sys |
| 279 |
< |
|
| 280 |
< |
|
| 281 |
< |
\begin{figure}[bt] |
| 282 |
< |
\begin{center} |
| 283 |
< |
\scalebox{0.8}{\includegraphics{figs/met_by_channel.eps}} |
| 284 |
< |
\caption{Missing transverse mass for the four signal categories. |
| 285 |
< |
The distributions show the number of expected events |
| 286 |
< |
for $1 fb^{-1}$. Only events with 81.1 GeV $< M_Z < $ 101.1 \gev |
| 287 |
< |
are shown. All selection cuts are applied.} |
| 288 |
< |
\label{fig:met} |
| 289 |
< |
\end{center} |
| 290 |
< |
\end{figure} |
| 291 |
< |
|
| 292 |
< |
\begin{figure}[bt] |
| 293 |
< |
\begin{center} |
| 294 |
< |
\scalebox{0.8}{\includegraphics{figs/mtw_by_channel.eps}} |
| 295 |
< |
\caption{W transverse mass for the four signal categories. |
| 296 |
< |
The distributions show the number of expected events |
| 297 |
< |
for $1 fb^{-1}$. Only events with 81.1 GeV $< M_Z < $ 101.1 GeV are shown. |
| 298 |
< |
All selection cuts are applied.} |
| 299 |
< |
\label{fig:mtw} |
| 300 |
< |
\end{center} |
| 301 |
< |
\end{figure} |
| 302 |
< |
|
| 303 |
< |
|
| 304 |
< |
|
| 305 |
< |
|
| 306 |
< |
\begin{table}[tbp] |
| 320 |
> |
\begin{table}[p] |
| 321 |
|
\begin{center} |
| 322 |
|
\begin{tabular}{lccccc} |
| 323 |
|
\hline \hline |
| 350 |
|
\caption{Selection efficiency for signal events in the four selection channels for the different |
| 351 |
|
generated \W and \Z decay channels.} |
| 352 |
|
\label{tab:wz-effimatrix} |
| 339 |
– |
\end{table} |
| 340 |
– |
|
| 353 |
|
|
| 354 |
< |
\begin{table}[tbp] |
| 354 |
> |
%\end{table} |
| 355 |
> |
%\begin{table}[tbp] |
| 356 |
|
\begin{center} |
| 357 |
|
\begin{tabular}{llcc} \hline |
| 358 |
|
& & \multicolumn{2}{c}{Generated decay:} \\ |
| 455 |
|
\label{tab:wz-matcheffi-Zmumu} |
| 456 |
|
\end{table} |
| 457 |
|
|
| 458 |
+ |
|
| 459 |
+ |
%\subsection{Signal extraction} |
| 460 |
+ |
%\input D0Matrix |
| 461 |
+ |
\input zjetbackground |
| 462 |
+ |
|
| 463 |
+ |
|
| 464 |
+ |
\section{Systematic uncertainties} |
| 465 |
+ |
\input Sys |
| 466 |
+ |
|
| 467 |
+ |
|
| 468 |
+ |
\begin{figure}[bt] |
| 469 |
+ |
\begin{center} |
| 470 |
+ |
\scalebox{0.8}{\includegraphics{figs/met_by_channel.eps}} |
| 471 |
+ |
\caption{Missing transverse mass for the four signal categories. |
| 472 |
+ |
The distributions show the number of expected events |
| 473 |
+ |
for $1 fb^{-1}$. Only events with 81.1 GeV $< M_Z < $ 101.1 \gev |
| 474 |
+ |
are shown. All selection cuts are applied.} |
| 475 |
+ |
\label{fig:met} |
| 476 |
+ |
\end{center} |
| 477 |
+ |
\end{figure} |
| 478 |
+ |
|
| 479 |
+ |
\begin{figure}[bt] |
| 480 |
+ |
\begin{center} |
| 481 |
+ |
\scalebox{0.8}{\includegraphics{figs/mtw_by_channel.eps}} |
| 482 |
+ |
\caption{W transverse mass for the four signal categories. |
| 483 |
+ |
The distributions show the number of expected events |
| 484 |
+ |
for $1 fb^{-1}$. Only events with 81.1 GeV $< M_Z < $ 101.1 GeV are shown. |
| 485 |
+ |
All selection cuts are applied.} |
| 486 |
+ |
\label{fig:mtw} |
| 487 |
+ |
\end{center} |
| 488 |
+ |
\end{figure} |
| 489 |
+ |
|
| 490 |
+ |
|
| 491 |
+ |
|
| 492 |
+ |
|
| 493 |
+ |
|
