\documentclass[xcolor=svgnames]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{polski}
%\usepackage{amssymb,amsmath}
%\usepackage[latin1]{inputenc}
%\usepackage{amsmath}
%\newcommand\abs[1]{\left|#1\right|}
\usepackage{amsmath}
\newcommand\abs[1]{\left|#1\right|}
\usepackage{hepnicenames}
\usepackage{hepunits}
\usepackage{color}
 
 
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
\definecolor{mygreen}{cmyk}{0.82,0.11,1,0.25}
 
 
%--------------------------------------------------------------------                       
%                           Introduction                                                    
%--------------------------------------------------------------------                       
                                                                                            
\usetheme{Sybila}                                                                           
                                                                                            
\title[ Rare beauty and charm decays at LHCb]{ Rare beauty and charm decays at LHCb}        
\author{Marcin Chrz\k{a}szcz$^{1}$ \\ \footnotesize{on behalf of the yLHCb collaboration}}   
\institute{$^1$~University of Zurich \\{~}\\  Deep-Inelastic Scattering 2015 }              
\date{\today}                                                                               
\begin{document}                                                                            
% --------------------------- SLIDE --------------------------------------------            
\frame[plain]{\titlepage}                                                                   
\author{Marcin Chrz\k{a}szcz}                                                               
% ------------------------------------------------------------------------------            
% --------------------------- SLIDE --------------------------------------------            
                                                                                            
\institute{~(UZH)}                                                                          
 
 
 
% --------------------------- SLIDE --------------------------------------------
\begin{frame}\frametitle{Fast reminder}
 
\begin{columns}
\column{2.8in}
\begin{itemize}
\item HBT interferometry can be used to study the diameters of source.
\item For indistinguishable particles the phenomena is know as Bose-Einstein Correlations(BEC).
\item BEC correlations occur as enhancement of same particles in the low $Q$ region.
\item We already observed the effects.
\item For now I want to make BEC for pions, kaons are for future(less statistics).
\item Use 2011 sample.
\end{itemize}
\begin{equation}
m =a  b \PB
\end{equation}
 
\column{2.2in}
%\includegraphics[height=3.cm,keepaspectratio]{images/HBT.png}
 
\end{columns}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                               
 
 
\end{frame}
 
 
              
\end{document}