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% Seth Brown, Ph.D.
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% see the macros.tex file for definitions
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% title slide definition
\title{Updates on activities.}
%\subtitle{a bias report}
\author{ Marcin Chrz\k{a}szcz$^{1,2}$ ,  Nicola Serra$^{1}$ }
\institute[UTH, IFJ]
{
 %\begin{tiny}
$ ^1$ University of Zurich , $ ^2$ Institute of Nuclear Physics, Krakow,  
 %\end{tiny}smallsmall
}
  
 
\date{ \begin{small} $16^{th}$ July 2013 \end{small}}
 
%--------------------------------------------------------------------
%                           Introduction
%--------------------------------------------------------------------
 
\begin{document}
 
 
 
 
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%--------------------------------------------------------------------
%                          OUTLINE
%--------------------------------------------------------------------
 
 
 
 
\section[Outline]{}
\begin{frame}
\tableofcontents
\end{frame}
 
 
 
 
 
 
 
%-------------------------------------------------------------------
%                          Introduction
%-------------------------------------------------------------------
%
% Set the background for the rest of the slides.
% Insert infoline
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\title{Update on analysis}
 
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
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\section{Inflaton analysis}
\subsection{Reminder}
\begin{frame}\frametitle{Reminder}
We observed strange FD distributions in MC:
\begin{columns}
\column{2.5in}
Reconstructed FD
  \includegraphics[scale=0.35]{pic2/FD_XI_reco.png}
 
 
\column{2.5in}
Reconstructed life time
 \includegraphics[scale=0.35]{pic2/time_XI_true.png}
 
 
\end{columns}
 
 
 
	\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
%\section{Work done so far}
 
 
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%55
\begin{frame}
\subsection{Generator Checks}
 
\frametitle{Work done so far}
{~}
Cross check:
\begin{itemize}
\item Let's simulate decay using generator level.
\item Same seeds, configuration, etc.
 
\end{itemize}  
 
  \includegraphics[scale=0.25]{pic2/FD_mctrue.png}\\ 
 
 
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
\begin{frame}
\subsection{Let's look into data}
 
\frametitle{First look into data}
{~}
\begin{columns}
\column{2.5in}
UpStream
  \includegraphics[scale=0.25]{pic2/normall_mass.png}
 
 
\column{2.5in}
DownStream 
 \includegraphics[scale=0.25]{pic2/down_mass.png}
 
 
\end{columns}
Blinded: $[5200,5350]$
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
 
 
 
\begin{frame}
\frametitle{What do we have in the Inflaton mass; UPSTREAM}
{~}
 
 
  \includegraphics[scale=0.35]{pic2/inflaton_mass.png}
 
 
Let's look closer.
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
 
\begin{frame}
\frametitle{$K_s$}
{~}
 
 
 
  \includegraphics[scale=0.4]{pic2/KS_mass.png}
 
 
 
 
 
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
 
\begin{frame}
\frametitle{$J/ \Psi$}
{~}
 
 
 
  \includegraphics[scale=0.4]{pic2/jpsi_mass.png}
 
 
 
 
 
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
\begin{frame}
\frametitle{$\Psi(2S)$}
{~}
 
 
 
  \includegraphics[scale=0.4]{pic2/psi2_mass.png}
 
 
 
 
 
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
\begin{frame}
\frametitle{What do we have in the Inflaton mass; DOWNSTREAM}
{~}
 
 
  \includegraphics[scale=0.35]{pic2/inflaton_mass_d.png}
 
 
 
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
\begin{frame}
\frametitle{$K_s$}
{~}
 
 
  \includegraphics[scale=0.35]{pic2/KS_mass_d.png}
 
 
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
\subsection{$K_s$ FD}
\begin{frame}
\frametitle{$K_s$ FD}
{~}
 
 
  \includegraphics[scale=0.35]{pic2/KS_flight_distance.png}
 
 
looks normal  \Simley{-1} 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
%\subsection{$K_s$ FD}
\begin{frame}
\frametitle{Let's make our inflaton more $K_s$ like.}
{~}
 
 
  \includegraphics[scale=0.15]{pic2/FD_XI_short_lifetime.png}
 
 
No bumps.Are we unlucky?
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
\subsection{Further steps }
 
\begin{frame}
\frametitle{Futher steps}
{~}
\begin{itemize}
\item Try making selection.
\item Will split the sample to up and downstream.
\item Think about the normalization channel. Big problems!
 
 
 
\end{itemize}
 
 
 
				\textref {M.Chrz\k{a}szcz, N.Serra 2013}
 
\end{frame}
 
 
 
\section{Bose-Einstein Correlations }
 
\begin{frame}
\frametitle{Bose-Einstein Correlation}
{~}
\begin{itemize}
\item We had a talk on soft QCD from prof. Bialas.
\item BEC looks more and more interesting.
\item Indirect test of statistical model.
\item The plan:
\begin{enumerate}
	\item Measure 2 body correlations.
	\item Measure 3 body correlations. FIRST TIME MEASUREMENT!
\end{enumerate}
\item FDC looks bad. Not clear theoretical predictions.
\item Will focus on K, $\pi$.
 
\end{itemize}
 
				\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
\begin{frame}
\frametitle{Work done since last meeting}
{~}
\only<1>{
\begin{itemize}
\item BEC predicts and enhancement of pars in low Q region.
\item To interpret you need Longitudinal Central Mass System (LCMS).
\item Needs a specific axis. After some discussion we decided to have two samples:Z-axis, and jet axis. 
\item LCMS was implemented.
\end{itemize}
}
\only<2>{
  \includegraphics[scale=0.4]{pic2/LCMS.png}
 
}
 
\only<3>{
  General Problem(since I didn't find it in literature): \\
  We have a four vector $Q_u=q_{1u}+q_{2u}$ and it's momentum competent $\overrightarrow{p}$. We have an arbitrary versor in space: $\overrightarrow{v}$. \\
  Question what's the boost vector $\overrightarrow{\beta} $?
  
  Solution:$\beta_i= v_i \dfrac{q_i}{q_0}$
  
}
 
		\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
\begin{frame}\frametitle{First look at BEC in LCMS}
\begin{columns}
\column{2.5in}
  \includegraphics[scale=0.23]{pic2/Qside.png}
 
 
\column{2.5in}
 \includegraphics[scale=0.23]{pic2/Qlong.png}
 
 
\end{columns}
 
This is $0.15\%$ of statistics!
 
 
 
				\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
 
 
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 
 
\section{$\Lambda_c$ decays}
\begin{frame}\frametitle{Motivation for $\Lambda_c$}
 
\begin{small}
Following the $\tau \to 3 \mu$ and $\tau \to p \mu \mu$ (published 2 weeks ago) we decided to go one step further and analyse analogous channels for $\Lambda_c$.
\begin{itemize}
\item Decays have different physics motivations:
\end{itemize}
\begin{center}
    \begin{tabular}{ l | l }
 	   $\tau \to 3 \mu$ LFV & $\Lambda_c \to 3 \mu$ $|B-L|= 0$ \\
 	   $\tau^{+} \to p \mu^{-} \mu^{+} $ $|B-L|= 0$ & $\Lambda_c^{+} \to p \mu^{-} \mu^{+} $  FCNC \\
       $\tau^{+} \to \bar{p} \mu^{+} \mu^{+} $ $|B-L|= 0$ & $\Lambda_c^{+} \to \bar{p} \mu^{+} \mu^{+} $  $|B-L|= 0$ \\ 	
    	
    \end{tabular}
\end{center}
 
\begin{itemize}
\item The current limits ($@$ 90\% CL):
\end{itemize}
$\mathcal{B}(  \Lambda_c^{+} \to p \mu^{-} \mu^{+}  ) < 4.4 \times 10^{-5}$, \footnote{arXiv:1107.4465} 
\newline
$\mathcal{B}(  \Lambda_c^{+} \to \bar{p} \mu^{+} \mu^{+}  ) < 9.4 \times 10^{-6}$ 
\newline
$\mathcal{B}(  \Lambda_c^{+} \to 3 \mu  )$ No constraints!
\end{small}
 
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
 
 
 
 
\begin{frame}\frametitle{First look at new MC}
 
 
 
  \includegraphics[scale=0.3]{pic2/Lc_mass.png}
 
 
$mean=2287.46 Mev$\\
$\sigma_1=17.5 Mev$, $\sigma_2=6.5 MeV$
 
 
 
				\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
\begin{frame}\frametitle{Plans for next week}
 
 
\begin{itemize}
\item Continue background production for $\tau$ and $\Lambda_c$
\item Have a look at isolation paramenter for Lc and tau.
\item Produce all ntuples for Lc.
\item Implement jet algorithm for BEC.
 
\end{itemize}
 
				\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
 
 
 
 
 
\begin{frame}
\begin{Huge}
BACKUP
\end{Huge}
				\textref {M.Chrz\k{a}szcz, N.Serra 2013}
\end{frame}
 
 
 
\begin{frame}
 
\frametitle{Strategy}
{~}
Follow the strategy of $\tau$ analysis:
\begin{itemize}
\item Take prompt $\Lambda_c$, separate approach to SL.
\item Loose cut preselection.
\item Train MVA on MC prompt signal and recalibrate on data. 
\item Mass resolution we expect similar to $\tau$. $15 MeV$ for $3 \mu$ and $9 MeV$ for $p \mu \mu$. Mean recalibrated from data.
\item Normalize to $\Lambda_c^{+} \to p K^{-} \pi^{+}$, or $\Lambda_c^{+} \to p \pi^{-} \pi^{+}$.
\item Optimise the binning in MVA.
\item CLs method for limit.
\end{itemize}  
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
 
%\section{Comparison $\Lambda_c$ vs $\tau$}
\begin{frame}\frametitle{Comparison $\Lambda_c$ vs $\tau$}
\colorbox{green}{Strong sides of $\Lambda_c$:}
 
 
\begin{itemize}
\item {No SM background in $3 \mu$ case ($\PDs \to \eta(\mu\mu\gamma) \mu \nu$)}
\item {Smaller combinatorial background than in $\tau$ decays. \Simley{1} }
%\item {Better prospers of observing something. Rare is better than forbidden  \Simley{1} }
\end{itemize}
 
\colorbox{red}{Weaker sides of $\Lambda_c$:}
\begin{itemize}
\item {Smaller no. of $\Lambda_c$ than $\tau$ to begin with.}
\item {Need to study very carefully $\Lambda_c$ production and backgrounds. }
\Simley{-1}
 
\end{itemize}
 
 
 
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
 
%\section{Work done so far}
\begin{frame}\frametitle{Work done so far}
\begin{itemize}
\item $\Lambda_c \to p \mu \mu$ is already stripped(line was with $\tau$ line all along).
\item $\Lambda_c \to 3\mu$ is being stripped in incremental stripping.
\item Requested 1M signal samples. Production will today most likely.
\item Background studies.
 
\end{itemize}
 
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
 
 
\begin{frame}\frametitle{Possible background}
 
\begin{center}
 
    \begin{tabular}{| c | c | c |}
    	\hline
   \textbf{ Resonance} &  $\mathcal{B} (\lambda_c \to p X)$& $\mathcal{B} (X \to \mu \mu)$\\ \hline 
  
     $\eta$ & UNKNOWN & $(5.8 \pm 0.6) \times 10^{-6}$ \\ \hline
    	 $\rho^0$ & UNKNOWN & $(4.55 \pm 0.28) \times 10^{-5}$ \\ \hline	
	$\omega$ &	UNKNOWN &  $(9.1 \pm 3.0) \times 10^{-5}$ \\ \hline
 	 $f(980)$ & $(2.8 \pm 1.9) \times 10^{-3}$ & UNKNOWN \\ \hline	   
  	 $\phi$ & $(8.2 \pm 2.7) \times 10^{-4} $ & $(2.89 \pm 0.19) \times 10^{-4}$ \\ \hline		     	\hline
  	
   \textbf{ Resonance} & $\mathcal{B} (\lambda_c \to p X)$ & $\mathcal{B} (X \to \mu \mu \gamma)$\\ \hline 
    $\eta$ & UNKNOWN & $(3.1 \pm 0.4) \times 10^{-4}$ \\ \hline	
    \end{tabular}
\end{center}
 
 
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
 
 
 
 
 
\begin{frame}\frametitle{$\Lambda_c$ production mechanism}
 
\begin{center}
 
    \begin{tabular}{| c | c |}
    	\hline
   \textbf{ Process} &  $\mathcal{B} (X \to \lambda_c Y)$   \\ \hline 
      $\Lambda_B \to \Lambda_c^+ \pi^{-}$ & $0.0088 \pm 0.0032$ \\ \hline
      $\Lambda_B \to \Lambda_c^+ \Pl \nu$ & $0.05 \pm 0.014$ \\ \hline	   
   	  $\Lambda_B \to \Lambda_c^+ \Pl \nu \pi \pi $ & $0.056 \pm 0.031$ \\ \hline	   
   	  $B \to \Lambda_c^+ \Pp \pi \pi^0  $ & $(1.8 \pm 0.6) \times 10^{-3}$ \\ \hline	   		
      $B \to \Lambda_c^+ \Pp \pi \pi \pi  $ & $(2.3 \pm 0.7) \times 10^{-3}$ \\ \hline	  	  
   	  $B \to \Lambda_c^+ \Lambda_c^- K^+  $ & $(8.7 \pm 3.5) \times 10^{-4}$ \\ \hline	  	  
   	  $B \to \Sigma(2455) \Pproton \pi^0  $ & $(4.4 \pm 1.8) \times 10^{-4}$ \\ \hline	  	  
   	  $B \to \Sigma(2455) \Pproton \pi \pi   $ & $(4.4 \pm 1.7) \times 10^{-4}$ \\ \hline		
   	  $B \to \Sigma(2455)^{--} \Pproton \pi \pi   $ & $(2.8 \pm 1.2) \times 10^{-4}$ \\ \hline
   	\hline
    \end{tabular}
\end{center}
 
 
	\textref {M.Chrz\k{a}szcz 2013}
\end{frame}
 
 
 
 
\end{document}