%==============================================================================
%== template for LATEX poster =================================================
%==============================================================================
%
%--custom beamer slide-------------------------------------------------------------
\documentclass[final]{beamer} % use beamer
\usepackage[orientation=portrait,
size=a0,          % poster size
scale=1.25         % font scale factor
]{beamerposter}    % beamer in poster size
%
%--some needed packages--------------------------------------------------------
\usepackage[american]{babel}  % language 
\usepackage[utf8]{inputenc}   % std linux encoding
\usepackage{booktabs}
\usepackage{multirow}
\usepackage{setspace}
%
%==The poster style============================================================
\usetheme{cpbgposter}            % our poster style
%--set colors for blocks (without frame)---------------------------------------
\setbeamercolor{block title}{fg=ngreen,bg=white}
\setbeamercolor{block body}{fg=black,bg=white}
%--set colors for alerted blocks (with frame)----------------------------------
%--textcolor = fg, backgroundcolor = bg, dblue is the jacobs blue
\setbeamercolor{block alerted title}{fg=white,bg=dblue!70}%frame color
\setbeamercolor{block alerted body}{fg=black,bg=dblue!10}%body color
%
\usecaptiontemplate{
\small
\structure{\insertcaptionname~\insertcaptionnumber:}
\insertcaption}
%==Titel, date and authors of the poster=======================================
%\title{Template for \LaTeX poster using the\\
%Computational Physics and Biophysics Group style}
%\title{Study of Muon Capture \\
%for $\boldsymbol{\mu^--e^-}$ Conversion Experiments}
\title{A Search for $\boldsymbol{\mu-e}$ Conversion \\
\vskip1.0ex
and a Study of Muon Capture Backgrounds}
\author{Tran Hoai Nam}
\institute{Department of Physics, Graduate School of Science, Osaka Univerity}
\date{\today}
%
%==some usefull qm commands====================================================
%  |x>
\newcommand{\ket}[1]{\left\vert#1\right\rangle}
%  <x|
\newcommand{\bra}[1]{\left\langle#1\right\vert}
%  <x|y>
\newcommand{\braket}[2]{\left< #1 \vphantom{#2}\,
\right\vert\left.\!\vphantom{#1} #2 \right>}
%  <x|a|y>
\newcommand{\sandwich}[3]{\left< #1 \vphantom{#2 #3} \right|
#2 \left|\vphantom{#1 #2} #3 \right>}
%  d/dt
\newcommand{\ddt}{\frac{d}{dt}}
%  D/Dx
\newcommand{\pdd}[1]{\frac{\partial}{\partial#1}}
%  |x|
\newcommand{\abs}[1]{\left\vert#1\right\vert}
%  k_{x}
\newcommand{\kv}[1]{\mathbf{k}_{#1}}
\newlength{\sepwid}
\newlength{\onecolwid}
\newlength{\twocolwid}
\setlength{\sepwid}{0.04\paperwidth}
\setlength{\onecolwid}{0.28\paperwidth}
\setlength{\twocolwid}{0.60\paperwidth}
\newcommand{\muec}{$\mu^{-} N \rightarrow e^{-} N$~}
\newcommand{\mueg}{$\mu^{+} \rightarrow e^{+}\gamma$~}
\newcommand{\meee}{$\mu \rightarrow eee$~}
\newcommand{\muenn}{$\mu \rightarrow e \nu \overline{\nu}$~}
\newcommand{\muenng}{$\mu \rightarrow e \nu \overline{\nu} \gamma$~}
%\setbeamertemplate{itemize item}{\textbf{\ding{192}}}
\setbeamertemplate{itemize item}{$\bullet$}
%==============================================================================
%==the poster content==========================================================
%==============================================================================
\begin{document}
%--the poster is one beamer frame, so we have to start with:
\begin{frame}[t]
	%--to seperate the poster in columns we can use the columns environment
	\begin{columns}[t] % the [t] options aligns the columns content at the top
		\begin{column}{0.28\paperwidth}% the right size for a 3-column layout
			%--abstract block--------------------------------------------------------
			\begin{block}{Introduction - Searches for cLFV}
				\begin{itemize} \itemsep0.5pt \parskip0.5ex \parsep0pt
					\item Charged lepton flavor violation (cLFV) is forbidden
						in the Standard Model (SM). However, it is predicted to occur in
						various extensions of the model. Experimental observation
						of cLFV process is a clear evidence of new physics beyond the
						SM.
						\vskip2ex
						%\ref{fig:SMmeg}).
						\begin{figure}[h!]
							\begin{center}
								\includegraphics[width=0.8\onecolwid]{figs/SM-meg2}
							\end{center}
							\caption{One of the diagrams of massive neutrino contributions to
							cLFV $\mu \rightarrow e\gamma$} 
							\label{fig:SMmeg}
						\end{figure}

					%\item Muon capture on nucleus: 
						%\begin{itemize}\parskip0.5ex \parsep0pt
							%\item Normal decays:
								%\begin{figure}[h!]
									%\begin{center}
										%\includegraphics[width=0.85\onecolwid]{figs/normdecays}
									%\end{center}
									%\caption{Fate of captured muons in SM}
									%\label{fig:normdecays}
								%\end{figure}
							%\item \textcolor{red}{Beyond the SM:} 
								%neutrino-less muon decay or $\mu - e$
								%conversion, lepton flavor violation by one unit:
								%\[\mu^{-} N \rightarrow e^{-} N \]
						%\end{itemize}
						\item $\mu - e$ conversion: neutrinoless decay of muon to electron
							in bound state of a nucleus, in this process, lepton flavor
							number is violated by one unit.  Current upper limit, set by
							SINDRUM II ~\cite{sindrum}: 
							\[
						Br(\mu^-+Au \rightarrow e^-+ Au)<7\times 10^{-13}
						\]
					\item Two new experiments are going to start to search for the
						cLFV $\mu-e$ conversion on aluminum target: COMET at J-PARC
						~\cite{cdr} and Mu2e  at Fermilab. Both projects are now optimizing
						parameters to get the final design.
					\item  The COMET stands for COherent Muon to Electron Transition.
						It has been approved by J-PARC in 2009 as experiment J-PARC E21.
						The experiment  will search for $\mu-e$ conversion on aluminum
						target with a single-event sensitivity 10,000 times better
						than the current limit. The COMET uses staging approach with two
						phases \cite{loi}:
						\vskip2ex
						\begin{figure}[h!]
							\begin{center}
								\includegraphics[width=0.85\onecolwid]{figs/cometphase1}
							\end{center}
							\caption{Schematic lay out of the COMET Phase I}
							\label{fig:cometphase1}
						\end{figure}
						\vskip5ex
						\begin{figure}[h!]
							\begin{center}
								\includegraphics[width=0.85\onecolwid]{figs/cometfull}
							\end{center}
							\caption{COMET at completion}
							\label{fig:cometfull}
						\end{figure}
						%\item Event signal of $\mu - e$ conversion: a single mono-energetic
						%electron at 105 MeV
						\end{itemize}
					\end{block}

					%% The proton measurement experiment
					\end{column}
					%===rightcolumn=================================================================
					% here the the middle and right column are put into one big column, this allows
					% to change between 2 and 3 column style
					\begin{column}{0.60\paperwidth} %thats the big right column
						\begin{block}{Proton background of the COMET Phase I and Mu2e}
							\begin{itemize}
								\item \textcolor{red}{Background from protons} could cause
									a very high hit rate on the tracking detectors. 
								\item Currently, there are \textcolor{red}{no experimental
									data}, in the relevant energy range, on the 
									products of muon capture from Al, and Ti target.
									Both COMET and Mu2e are using extrapolated data from a
									measurement on an active Si target in 1968 (fig.
									~\ref{fig:sidata}) designing the detectors.  
							\end{itemize}
						%\begin{itemize}
							\begin{minipage}[t]{1.4\onecolwid}
									\begin{figure}[h!]
										\centering
										\includegraphics[width=1.3\onecolwid]{figs/issue2}
										\caption{Concept of the COMET Phase I tracking detectors}
										\label{fig:issue}
									\end{figure}
								\end{minipage}
							\begin{minipage}[t]{0.7\onecolwid}
									\begin{figure}[h!]
										\includegraphics[width=0.7\onecolwid]{figs/si-proton}
										\caption{Charged particles spectrum after muon capture on
										Si$^{28}$ \cite{sidata}}
										\label{fig:sidata}
									\end{figure}
								\end{minipage}
						\end{block}

						\begin{block}{New measurement of charged particles from muon capture}
							\begin{itemize}\itemsep1pt \parskip0.5ex \parsep0pt
								\item A joint work between COMET and Mu2e, will be
									conducted at TRIUMF and PSI
								\item Goals of the experiment:
									\begin{itemize}
										\item measure \textcolor{red}{rate and energy
											spectra} of the charged
											particles (p, d, $\alpha$) emitted after muon capture on
											some targets: Al, Ti and Si
										\item required precision: \textcolor{red}{5\%} 
											for both the rate and the
											energy spectra in  the range from 2.5 $-$ 12 MeV
									\end{itemize}
							\end{itemize}
						\end{block}
						%\vskip1ex
						% Methods
						\begin{block}{Methods}
							\begin{figure}[]
								\includegraphics[width=0.85\twocolwid]{figs/setupa}
								\caption{Experimental setup: schematic view (left) and actual
								photo (right)}
								\label{fig:setup}
							\end{figure}
							\vskip-3ex
							\begin{minipage}[t]{\onecolwid}
								\begin{itemize}\itemsep1pt \parskip0.5ex \parsep0pt
									\item Low momentum muon beam: to ensure a high rate of stopped
										muons, and a well determined range of muons in the targets. A
										cloud muon of 30 $-$ 34 MeV/c from a surface muon channel is
										optimal.
									\item Muon normalization: muonic X-ray measurement by
										a germanium detector.
								\end{itemize}
							\end{minipage} % Do not put another blank line after this line because
							%that will mess up the alignment of the two minipages
							\begin{minipage}[t]{\onecolwid} 
								\begin{itemize}\itemsep1pt \parskip0.5ex \parsep0pt
									\item The charged particles are measured by dE/dx method
										by two pairs of silicon detectors. Active area of each silicon
										detector is 5$\times$5 cm$^2$, the dE detectors are 65 $\mu m$
										thick, and the E detectors are 1500 $\mu m$ thick.
									\item Correction for energy loss of charged particles in the
										targets: using the active silicon target.
								\end{itemize}
							\end{minipage}
						\end{block}
						%\vskip2ex
						%===two right columns===========================================================
						% we have to give the total width for the column wich is equal to the sum of
						% two colums and the space between them, this is needed to make shure the two
						% cols take all the space of the 'mother' column 
						\begin{columns}[t,totalwidth=0.60\paperwidth]
							% and then we put in two normal sized columns
							\begin{column}{0.28\paperwidth}
								%--the Left block-----------------------------------------------------------
								\begin{block}{Calculations}
									\begin{itemize}\itemsep1pt \parskip0.5ex \parsep0pt
										\item Using Geant4, with assumptions:
											\begin{itemize}\itemsep1pt \parskip0.5ex \parsep0pt
												\item  Muon: $p = 30 MeV/c$, $\Delta p/p = 5\%$,
													$10^4$ muons/sec
												\item  Proton emission rate: 0.15 per muon capture,
													the same value as that is being used in COMET
													designing calculations
												\item  Energy resolution (FWHM) of silicon detectors
													are: 140 keV for the 65 $\mu m$-thick detectors, and
													40 keV for the 140 $\mu m$-thick detectors.
												%\item  Thickness of the beam counter scintillator: 0.5 mm
											\end{itemize}
										\item Simulation results of particle identification and rate
											estimation is shown in Figure \ref{fig:dEdx} and Table
											\ref{tb:rates}.
									\end{itemize}
									\vskip3ex
									\begin{figure}[]
										\includegraphics[width=0.95\onecolwid]{figs/dEdx}
										\caption{Particle identification with two silicon detectors}
										\label{fig:dEdx}
									\end{figure}
								\end{block}
							\end{column}
							%--the Right block--------------------------------------------------------------
							\begin{column}{\onecolwid}
								\begin{block}{Calculations (cont.)}
									\begin{table}[h!]
										\begin{center}
											\scalebox{0.75}{
											\begin{tabular}{cccc}
												\toprule
												Target 		& \% Stopping & Event rate (Hz) & Event rate (Hz) \\ 
												thickness ($\mu$m)& in target & All particles & Protons \\ 
												\midrule
												50  & 2  & 8.1 	& 1.0   \\ 
												100 & 16 & 21.3 & 1.5  \\ 
												150 & 38 & 39.9 & 2.1  \\ 
												200 & 53 & 51.1 & 2.4  \\ 
												\bottomrule
											\end{tabular}
											}
										\end{center}
										\caption{Estimated event rates for various targets of different
										thickness. }
										\label{tb:rates} 
									\end{table}
								\end{block}
								%\vskip2ex
								\begin{block}{Plan}
									\begin{itemize}\itemsep1pt \parskip0.5ex \parsep0pt
										\item September 2012: proposal to TRIUMF was accepted as
											experiment S1371, 3 weeks beam time
										%\item Late November 2012: beam test
										\item December 2012: a proposal will be submitted to PSI
										\item Early 2013: TRIUMF run, 36 shifts
									\end{itemize}
								\end{block}
								%\vskip2ex
								\begin{block}{References}
									\small{\begin{thebibliography}{99}
										\bibitem{sindrum} Burtl W et al. (The SINDRUM II Collaboration), 
											\textit{Eur. Phys. J. C} \textbf{47} (2006) 337 
										\bibitem{cdr} The COMET Collaboration, ``Conceptual Design
											Report'' (CDR) , KEK-2009-10 
										\bibitem{loi} The COMET Collaboration, ``Letter of Intent
											for Phase-I of the COMET Experiment at J-PARC'',
											J-PARC-2012-3
										\bibitem{sidata}  S. E. Sobottka and E. L. Wills, 
											\textit{Phys. Rev. Lett.}  \textbf{20} (1968) 596-598
									\end{thebibliography}}
								\end{block}
							\end{column}
						\end{columns}
						%--wide text without block------------------------------------------------------
						%Those pictures where drawn with the TikZ package, which is a perfect tool if
						%you want to draw pictures or plot functions or data directly in \LaTeX. To
						%get an impression of the possibilities of this package have a look at its
						%manual \cite{pgf}. It is even possible to wonderfull frames around posters.
						%\vskip2ex
						%--Conclusion block-------------------------------------------------------------
						%   \begin{alertblock}{Conclusion}
						%    As you can see it is possible to make your poster very colorfull. But in 
						%    most cases this will this will overload your poster. If you don't change 
						%    the color settings you will get the default look, which consits of some
						%    shades of the jacobs blue and some decent green highlights. These colors 
						%    where chosen carefully to keep a consistent look of the poster. The 
						%    \emph{cpbgposter} style is installed our office computers, so you should be
						%    able to compile this example out of the box with pdflatex. If you want to
						%    work on your computer make sure that you have a recent TeX distribution 
						%    (TeXlive 2008, Miktex) and download the beamerthemecpbgposter.sty file from
						%    our teamwork page and put it in your local TeX directory.
						%
						%    If you have any questions, critics, ideas or if you just want to praise the
						%    awesome dude who created this insanely great poster style then don't
						%    hastitate to write an email to \emph{j.liebers@jacobs-university.de}
						%% guess what this command is god for!
						%    \makeruleinbox
						%% it works, but causes some underfull/overfull \hbox warnings
						%    \begin{center}
						%     {\huge\vskip-1ex
						%     {\color{nred}H}{\color{norange}a}{\color{nyellow}p}
						%     {\color{ngreen}p}{\color{dblue}y}\\
						%     \TeX'ing!}
						%    \end{center}
						%   \end{alertblock}
						\end{column}
					\end{columns}
				\end{frame}
				\end{document}
