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\section{Introduction}\label{section:Intro}
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This note describes a search for $H \rightarrow ZZ^{*}$ in the 4-lepton channel with $4.7~\rm{fb^{-1}}$. The primary differences between this analysis and the current baseline~\cite{baseline} are :
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1.1 |
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\begin{itemize}
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khahn |
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\item {\bf MVA Electron Identification :} Electrons are identified using a Boosted Decision Tree discriminant trained on data. Identification requirements are looser for electron canidates used in the reconstruction of the on-shell $Z$.
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\item {\bf 2D Signal Extraction :} We include angular information and the mass of the second, potentially off-shell $Z$ in the signal extraction fit via an MVA discriminant.
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khahn |
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khahn |
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\item {\bf Isolation :} We apply PF isolation criteria on individual leptons.
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\item {\bf Treatment of Fake/Instrumental Backgrounds :} We produce a combined estimate of light and heavy flavor backgrounds using the ``fakeable object'' technique. We assess the performance of this method in several control regions.
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khahn |
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\end{itemize}
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khahn |
1.3 |
These changes result in the selection of {\bf $+13/-20 = 7$ } events with respect to the baseline analysis. We discuss these events in detail in Section~\ref{sec:Results}. Our observed limits are comparable to those of~\cite{baseline}.
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