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\title[S-wave problem]{S-wave problem?}
\author{Marcin Chrz\k{a}szcz$^{1,2}$, Nicola Serra$^{1}$}
\institute{$^1$~University of Zurich,\\ $^2$~Institute of Nuclear Physics, Krakow}
\date{\today}
 
\begin{document}
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\frame[plain]{\titlepage}
\author{Marcin Chrz\k{a}szcz(UZH, IFJ)}
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\begin{frame}\frametitle{Before we begin}
\begin{columns}
\column{3.5in}
\includegraphics[width=0.95\textwidth]{images/phd040908s.png}
\\{~}\\
\includegraphics[width=0.95\textwidth]{images/phto.png}
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{~}
\begin{itemize}
\item I appologise for my lack of activities, was really busy with pushing out Phd.
\item If I wouldn't push it before X-mas the next window to submit was in March.
\end{itemize}
\end{columns}
\end{frame}
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\begin{frame}\frametitle{What is the problem?}
\begin{itemize}
\item Thomas just before X-mas reported problem that he sees biases in MoM.
\item This is not what I remembered from my studies so debugged the problem/refresh my memories.
\item Looking just at my pulls produced long long time ago every seemed fine.
\end{itemize}
\begin{columns}
\column{1.6in}
\includegraphics[width=0.95\textwidth]{pulls_old/S4.png}
 
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\end{frame}
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\begin{frame}\frametitle{Debbuging}
\begin{footnotesize}
\begin{itemize}
\item We define the set of function $f_i$ and calcula their expected values with errors.
\item Then we solve set of equations and get the paramters of interest.
\item In the note the first stage gives our so called Raw moments.
\end{itemize}
\end{footnotesize}
\begin{columns}
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\includegraphics[width=0.95\textwidth]{pulls/RFl.png}
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\includegraphics[width=0.95\textwidth]{pulls/RS3.png}
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\includegraphics[width=0.95\textwidth]{pulls/RS4.png}
 
 
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\includegraphics[width=0.95\textwidth]{pulls/RS5.png}
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\includegraphics[width=0.95\textwidth]{pulls/RS8.png}
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\includegraphics[width=0.95\textwidth]{pulls/RS9.png}
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\includegraphics[width=0.95\textwidth]{pulls/RFs.png}
 
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\begin{frame}
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\includegraphics[width=0.95\textwidth]{pulls/RSs1.png}
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\includegraphics[width=0.95\textwidth]{pulls/RSs2.png}
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{~}
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\begin{itemize}
\item MoM works perfectly. Both mean and error is ok!
\item Now the trick is to propagate the error. 
\item Thomas used just the covariance matrix! $\leftarrow$ not applicable here.
\item 
 
\end{itemize}
 
\end{frame}
 
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\begin{frame}\frametitle{Statistics reminder}
\begin{itemize}
\item From any statistcis book $\dfrac{1}{x}$ shouldn't cov matrix but use MC techniques.
\item Don't time to show here it now but it's simple.
\end{itemize}
 
 
\end{frame}
 
 
 
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\begin{frame}\frametitle{Other stuff}
\begin{itemize}
\item I started doing many other stuff:
\begin{itemize}
\item Systematics for RECO12/14 $\rightarrow$ PROBLEM
\item Statistics for MoM $\rightarrow$ generating toys
\item S-wave $\rightarrow$ for MoM we will use BW phase shift.
\item All will be finished by the weekend. Fuc... QCD exam!
\end{itemize}
\end{itemize}
 
 
\end{frame}
 
 
 
 
 
 
                       
\end{document}