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\section{Introduction}
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\label{sec:intro}
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Supersymmetry (SUSY) is a popular extension to the standard model (SM) of particle physics, which may explain
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the 16 orders of magnitude difference between the electroweak and Planck scales (hierarchy problem), introduce
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a natural candidate for the dark matter weakly-interacting massive particle (WIMP), and lead to the unification of
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gauge couplings. In order to solve the hierarchy problem without fine-tuning, SUSY must introduce
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light top and bottom squarks (SUSY partners of the top and bottom quarks) and light gluinos
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(SUSY partner of the gluon)~\cite{Barbieri:1987fn,deCarlos1993320,Dimopoulos1995573,Barbieri199676,Papucci:2011wy}.
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If R-parity is conserved, the lightest SUSY particle (LSP),
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usually the lightest neutralino \lsp, is a stable WIMP. If produced in pp collisions this
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particle carries away undetected energy and leads to large missing transverse energy (\met).
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In this note we present the results of searches for the top and bottom squarks in final states with \met,
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using data collected by the Compact Muon Solenoid (CMS) detector at the
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Large Hadron Collider (LHC). The data was collected at a center-of-mass energy of $\sqrt{s}=8$~TeV in 2012
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and corresponds to an integrated luminosity of approximately 10~fb$^{-1}$.
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\begin{figure*}
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\centering
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%\begin{center}
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\begin{tabular}{cc}
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\includegraphics[width=0.45\textwidth]{HCPPlots/T2tt.pdf} &
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\includegraphics[width=0.45\textwidth]{HCPPlots/A2.pdf} \\
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\includegraphics[width=0.45\textwidth]{HCPPlots/T2bb.pdf} &
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\includegraphics[width=0.45\textwidth]{HCPPlots/B2.pdf} \\
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\end{tabular}
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\caption{
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Examples of topologies with top and bottom squarks targeted in the searches described in the text.
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Top (top) and bottom (bottom) squarks may be produced either directly in pairs (left), or in the
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decays of the gluino (right).
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\label{fig:diagrams}
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}
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%\end{center}
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\end{figure*}
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%\begin{figure*}
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%\centering
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%\includegraphics[width=1cm,clip]{HCPPlots/T2tt.pdf}
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%% Use the relevant command for your figure-insertion program
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%% to insert the figure file. See example above.
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%% If not, use
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%\vspace*{5cm} % Give the correct figure height in cm
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%\caption{Please write your figure caption here}
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%\label{fig:diagrams} % Give a unique label
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%\end{figure*}
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Top and bottom squarks may either be produced directly in pairs
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(direct pair production) or in the decays of the gluinos (gluino-mediated squark production).
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Examples of such processes are indicated in Fig.~\ref{fig:diagrams}.
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The production of these particles may lead to excesses above the SM background expectations in several final states,
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depending on the mass hierarchy of the SUSY particles.
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Here we report the results from three searches which focus on the single lepton final state using the transverse
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mass~\cite{ref:stop}, the same-sign dilepton final state~\cite{ref:ss}, and the all-hadronic final state~\cite{ref:alphat}.
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