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% title slide definition
\title{MVA selection for $\tau \to 3\mu$}
%\subtitle{a bias report}
\author{ Marcin Chrz\k{a}szcz$^{1,2}$}
\institute[UTH, IFJ]
{
 %\begin{tiny}
$ ^1$ University of Zurich , $ ^2$ Institute of Nuclear Physics, Krakow,  
 %\end{tiny}smallsmall
}
  

\date{ \today}

%--------------------------------------------------------------------
%                           Introduction
%--------------------------------------------------------------------

\begin{document}




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%--------------------------------------------------------------------
%                          OUTLINE
%--------------------------------------------------------------------




\section[Outline]{}
\begin{frame}
\tableofcontents
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%-------------------------------------------------------------------
%                          Introduction
%-------------------------------------------------------------------
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\title{Update on analysis}


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\section{Blending - THE END}
\begin{frame}\frametitle{Where did we end last year}
{~}\\
\begin{itemize}
\item We decided to use Blending technique with MatrixNet.
\item Jon updated the mixing numbers $\rightarrow$ Need to retrain everything and hope things are status quo.
\item People thanks to $\PBs \to \mu \mu$ will ask about mass correlation $\rightarrow$ Need to check to shut them up. Big big surprise. 
\end{itemize}



\textref {M.Chrz\k{a}szcz 2013}

\end{frame}
\begin{frame}\frametitle{Status quo}
{~}\\
\begin{columns}
\column{2in}
\begin{itemize}
\item I was to lazy to retrain all TMVA stuff.
\item So just compared: GeoMVA(we have it for free), MN standalone, Blending.
\item Again Blending wins.
\end{itemize}
\column{3in}
\center  \includegraphics[scale=0.28]{final2/ROC_2012.png}


\end{columns}


	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}

\begin{frame}\frametitle{Status quo}
{~}\\
\begin{columns}
\column{2in}
\begin{itemize}
\item I was to lazy to retrain all TMVA stuff.
\item So just compared: GeoMVA(we have it for free), MN standalone, Blending.
\item Again Blending wins. $\rightarrow$ I am happy.
\end{itemize}
\column{3in}
\center  \includegraphics[scale=0.28]{final2/ROC_2012.png}


\end{columns}


	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}

\begin{frame}\frametitle{Status quo}
{~}\\
\begin{columns}
\column{2in}
\begin{itemize}
\item For sanity check I also have looked into 2011 data.
\item Result stays the same.
\end{itemize}
\column{3in}
\center  \includegraphics[scale=0.28]{final2/ROC_2011.png}


\end{columns}


	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
\begin{frame}\frametitle{How does MN look like.}
{~}\\
\begin{columns}
\column{2in}
\begin{itemize}
\item So MN is Gradient BDT. (name in the ntuple: MN\_BLEND)
\item Applied transformation to make flat signal distribution. (name in the ntuple: MN\_BLEND\_FLAT).
\end{itemize}
\center  \includegraphics[scale=0.19]{final2/bckmn.png}\\

\column{3in}
\center  \includegraphics[scale=0.2]{final2/MN.png}\\
\center  \includegraphics[scale=0.2]{final2/MN_FLAT.png}

\end{columns}
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%






\begin{frame}\frametitle{Mass correlation - Sit down, this is hardcore}
{~}\\
\begin{columns}
\column{2in}
\begin{itemize}
\item So lets check the correlation for my blending using MN.
\item Correlation is flat and arround $3.5\%$. Everything seems to be ok.
\item Now the scary part. I checked this for GeoMVA.
\end{itemize}
\column{3in}
\center  \includegraphics[scale=0.28]{final2/corr_BLend.png}


\end{columns}


	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}



\begin{frame}\frametitle{Mass correlation - Sit down, this is hardcore}
{~}\\
\begin{columns}
\column{2in}
\begin{itemize}
\item I saw $30\%$ correlation in our previous GEOMVA!
\item Before I got a heart attack I had  thought: Making clarifies flat has to change the correlation  value. So GeoMVA was transformed to be flat, for 1:1 comaprison.
\item Never the less $15\%$ in GeoMVA remains ;(
\end{itemize}
\column{3in}
\center  \includegraphics[scale=0.28]{final2/corr_Geo.png}


\end{columns}


	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}



\begin{frame}\frametitle{MVA conclusions}
{~}\\

\begin{itemize}
\item Blending is the best performing MVA.
\item Mass correlation is reasonable low.
\item GeoMVa mystery: Different RECO might have something to do with what we saw. It also could explain why GeoMVA is so efficient now(correlation might make the bck level artificially lower) $\leftarrow$ this idea was after midnight and 3 pines of beer so I might now change my mind.
\end{itemize}

	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}


\section{Binning optimisation}

\begin{frame}\frametitle{Binning}
{~}\\

\begin{itemize}
\item Performed binning optimisation(with old trigger strategy and old classifier(before Jons updates)).
\item All this will be updated of coz with Pauls new results + new clarifies.
\item For 2012 for binning with eta veto:\\
PID: 0 0.10 0.42 0.75 0.81 0.86 1.00\\
BLEND\_FLAT: 0. 0.05 0.38 0.63 0.71 0.82 1.00
\end{itemize}

\center  \includegraphics[scale=0.2]{final2/cl1.png}


	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}


\begin{frame}\frametitle{Binning - details}
{~}\\

\begin{itemize}
\item Binning uses CLs method, not enough time to play with other FOM.
\item Optimisation requires at least 8 events in the bin.
\item Minimum bin size is 0.06.
\item The sieve is 0.01

\end{itemize}

\center  \includegraphics[scale=0.2]{final2/cl1.png}


	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}


\section{$\eta$ background}
\begin{frame}\frametitle{Binning - details}
{~}\\

\begin{itemize}
\item Did all the fits to $\eta$ bck.
\item Fits are far more stable then last year.
\item Will try to make a single fit to all bins to reduce the systematics.
\item All fits are here: \href{http://nz17-p1.ifj.edu.pl/work_public/LHCb/Tau23Mu/Eta_fits/}{LINK}
\item I was lazy and didn't want to latex thing that will change...
\item The same with fits with $\eta$ veto....
\item MC/Data comparison doing Splot: \href{http://nz17-p1.ifj.edu.pl/work_public/LHCb/Tau23Mu/MCDATA/}{LINK}

\end{itemize}
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}


\section{Plan}
\begin{frame}\frametitle{The Plan}
{~}\\

\begin{enumerate}
\item If we want to move with this for Moriond we would need to have a limit soon.
\item I would propose the attemnt to have on next week a preliminary limit.
\item What we need:

\end{enumerate}
\begin{itemize}
\item $\PDs \to \phi \pi$. Done for 2011 and 2012. Will appear today on my page.
\item New binning: 6 hours of computing one scenario$\rightarrow$ tmr will have it.
\item Fits(with $\eta$ veto: Wed).
\item Calibration: Paul?
\item Limit(lets aim 2011+2012). I have script from Diego with the combination for $\PBs \to \mu\mu$.
\item But it is never easy to run those things(2-3 days).
\item Lets try to make an effort?
\end{itemize}

	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%




\end{document}