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Presentations / FPCP_2018 / mchrzasz.tex
@Marcin Chrzaszcz Marcin Chrzaszcz on 1 Jul 2018 18 KB started FPCP presentation
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\author{ {M.Chrzaszcz} (CERN)}
\institute{UZH}
\title[Rare decays in the beauty, charm and strange sector]{Rare decays in the beauty, charm and strange sector}
\date{28 March 2018}


\begin{document}
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{
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\begin{center}
\begin{center}
	\begin{columns}
		\begin{column}{0.75\textwidth}
			\flushright\bfseries \Huge {Rare decays in the beauty, charm and strange sector}
		\end{column}
                \begin{column}{0.02\textwidth}
                  {~}
                  \end{column}
                \begin{column}{0.23\textwidth}
                 % \hspace*{-1.cm}
                  \vspace*{-3mm}
                  \includegraphics[width=0.6\textwidth]{lhcb-logo}
                  \end{column}

	\end{columns}
\end{center}
	\quad
	\vspace{3em}
\begin{columns}
\begin{column}{0.44\textwidth}
\flushright \vspace{-1.8em} { \Large Marcin Chrzaszcz\\\vspace{-0.1em} \vspace{-0.1em} }

\end{column}
\begin{column}{0.53\textwidth}
\includegraphics[height=1.3cm]{cern}
\end{column}
\end{columns}
\vspace{0.2em}


\vspace{1em}

\vspace{0.5em}

	\textcolor{normal text.fg!50!Comment}{FPCP, Hyderabad\\14-18 July 2018
}
\end{center}
\end{frame}
}


\begin{frame}{Outline}

FIXME

\end{frame}




%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}\frametitle{Why rare decays?}                                                                           
\begin{columns}                                                                                                      
\column{4in}                                                                                                         
\begin{itemize}                                                                                                      
\item In the SM allows only the charged interactions to change flavour.                                                  
\begin{itemize}                                                                                                      
\item Other interactions are flavour conserving.                                                                     
\end{itemize}                                                                                                        
\item One can escape this constrain and produce $\Pbottom \to \Pstrange$ and $\Pbottom \to \Pdown$ at loop level.    
\begin{itemize}                                                                                                      
\item This kind of processes are suppressed in the SM $\to$~Rare decays.                                                 
\item New Physics can enter in the loops.                                                                            
\end{itemize}                                                                                                        
\end{itemize}                                                                                                        
\begin{center}                                                                                                       
\includegraphics[scale=0.3]{images/lupa.png}                                                                           
\includegraphics[scale=0.3]{images/example.png}                                                                        
\end{center}                                                                                                         
\column{1.5in}                                                                                                       
\includegraphics[width=0.61\textwidth]{images/couplings.png}                                                           
\end{columns}                                                                                                        
                                                                                                                     
\end{frame}



\begin{frame}
\only<1>{\frametitle{LHCb detector - tracking} 

\begin{columns}
\column{3in}
\includegraphics[width=0.9\textwidth]{images/1050px-Lhcbview.jpg}

\column{2in}
\includegraphics[width=0.95\textwidth]{images/sketch.png}
\end{columns}
\begin{itemize}
\item Excellent Impact Parameter (IP) resolution ($20~\rm \mu m$).\\
$\Rightarrow$ Identify secondary vertices from heavy flavour decays
\item Proper time resolution $\sim~40-50~\rm fs$.\\
$\Rightarrow$ Good separation of primary and secondary vertices.
\item Excellent momentum ($\delta p/p \sim 0.5 - 1.0\%$) and inv. mass resolution.\\
$\Rightarrow$ Low combinatorial background.

\end{itemize}

}

\only<2>{\frametitle{LHCb detector - PID}

\begin{columns}
\column{3in}
\includegraphics[width=0.9\textwidth]{images/1050px-Lhcbview.jpg}

\column{2in}
\includegraphics[width=0.95\textwidth]{images/cher.png}
\end{columns}
\begin{itemize}
\item Excellent Muon identification $\epsilon_{\mu \to \mu} \sim 97\%$, $\epsilon_{\pi \to \mu} \sim 1-3\%$
\item Good $\PK-\Ppi$ separation via RICH detectors, $\epsilon_{\PK \to \PK} \sim 95\%$,  $\epsilon_{\Ppi \to \PK} \sim 5\%$.\\
$\Rightarrow$ Reject peaking backgrounds.
\item High trigger efficiencies, low momentum thresholds.\\
%Muons: $p_T > 1.76 \GeV/c$ at L0, $p_T > 1.0 \GeV/c$ at HLT1,\\
$B \to \PJpsi X $: Trigger $\sim 90\%$.

\end{itemize}


}

\textref{Int. J. Mod. Phys. A30 (2015) 1530022}
\vspace*{2.1cm}
\end{frame}




\begin{frame}{Rare beauty decays}

\begin{columns}

\column{0.5\textwidth}
\begin{exampleblock}{$\Pbeauty \to \Pstrange \ell \ell$ family}
\begin{itemize}
\item $\PB \to \PKstar \mu \mu$
\item $\PBs \to \Pphi \mu \mu$
\item $\Lambda_b \to \Pproton \PK \mu \mu$
\item LUV: $R_K$, $R_{\PKstar}$
\end{itemize}
\end{exampleblock}
{~}\\
\ARROW To many results to be covered in one talk! Please see A.~Campos talk for more!

\column{0.5\textwidth}
\begin{alertblock}{$\Pbeauty \to \Pstrange \gamma$ family}
\begin{itemize}
\item $\PB \to \PJpsi \gamma$
\item $\PB \to \PK \Ppi \Ppi \gamma$
\end{itemize}
\end{alertblock}

\begin{block}{$\Pbeauty \to \Pdown \ell \ell$ family}
\begin{itemize}
\item $\PB \to \pi \pi \mu \mu$
\item $\APBs \to \PKstar \mu \mu$
\item $\Lambda_b \to \Pproton \pi \mu \mu$
\end{itemize}

\end{block}

\begin{exampleblock}{Purelly leptonic familly}
\begin{itemize}
\item $\PB \to \ell \ell$
\item LFV: $\PB \to \ell \ell^{\prime}$
\item LFV in $\tau$

\end{itemize}

\end{exampleblock}

\end{columns}



\end{frame}



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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5

\begin{frame}{$\Lambda_b \to \Lambda \mu \mu$}
\begin{columns}
\column{0.01\textwidth}
{~}
\column{0.4\textwidth}
\ARROW $\Pbeauty \to \Pstrange \mu \mu$ in baryon sector. \\
\ARROW Because of spin $1/2$ nature of the baryon there the system has to be described by 5 angles:~\href{https://arxiv.org/pdf/1710.00746.pdf}{{\color{blue}1710.00746}}\\
\ARROW Impossible to perform a likelihood fit. Need to use moments:
\begin{align*}
M_i = \frac{3}{32\pi^2} \int \sum_{i=1}^{34} K_i(q^2) f(\overrightarrow{\Omega}) d\overrightarrow{\Omega}
\end{align*}

\column{0.6\textwidth}
\includegraphics[width=0.99\textwidth]{{images/angular_basis.pdf}}

~~\ARROW In total we have 34 observables!

\end{columns}

\textref{LHCb-PAPER-2018-029}
\end{frame}


\begin{frame}{$\Lambda_b \to \Lambda \mu \mu$}
\begin{columns}
\column{0.01\textwidth}
{~}
\column{0.6\textwidth}
\ARROW Update with $5~\invfb$.\\
\ARROW 610 events observed in the high $q^2$.\\
\ARROW Angular efficiency modelled in 6D.\\{~}\\
\includegraphics[width=0.99\textwidth]{{images/angles.pdf}}

\column{0.4\textwidth}
\includegraphics[width=0.99\textwidth]{{images/figure51.pdf}}\\
\ARROW The results:\\{~}\\
\includegraphics[width=0.99\textwidth]{{images/Ki.pdf}}\\


\end{columns}

\textref{LHCb-PAPER-2018-029}
\end{frame}



\begin{frame}{$\APBs \to \PKstar \mu \mu$}

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{~}
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wq

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qwe


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{~}
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weq

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qwe


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\end{frame}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}\frametitle{$\PB \to e \mu$}

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\begin{frame}\frametitle{$\PB \to e \mu$}

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\end{frame}

\begin{frame}\frametitle{$\PKshort \to \mu \mu$}
qewqeq

\end{frame}


\begin{frame}\frametitle{$\Sigma \to \Pproton \mu \mu$}
qewqeq

\end{frame}

\begin{frame}\frametitle{$\Sigma \to \Pproton \mu \mu$}
qewqeq

\end{frame}



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