338 lines
12 KiB
Plaintext
Executable File
338 lines
12 KiB
Plaintext
Executable File
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% LaTeX poster template
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% Created by Nathaniel Johnston
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% August 2009
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% http://www.nathanieljohnston.com/2009/08/latex-poster-template/
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\documentclass[final]{beamer}
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\usepackage[scale=1.24]{beamerposter}
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\usepackage{graphicx} % allows us to import images
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%-----------------------------------------------------------
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% Define the column width and poster size
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% To set effective sepwid, onecolwid and twocolwid values, first choose how
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% many columns you want and how much separation you want between columns The
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% separation I chose is 0.024 and I want 4 columns
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% Then set onecolwid to be (1-(4+1)*0.024)/4 = 0.22
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% Set twocolwid to be 2*onecolwid + sepwid = 0.464
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%-----------------------------------------------------------
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\newlength{\sepwid}
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\newlength{\onecolwid}
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\newlength{\twocolwid}
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\newlength{\threecolwid}
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\setlength{\paperwidth}{594mm}
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\setlength{\paperheight}{841mm}
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\setlength{\sepwid}{0.024\paperheight}
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\setlength{\onecolwid}{0.22\paperheight}
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\setlength{\twocolwid}{0.464\paperheight}
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\setlength{\threecolwid}{0.708\paperheight}
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%\setlength{\sepwid}{0.024\paperwidth}
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%\setlength{\onecolwid}{0.22\paperwidth}
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%\setlength{\twocolwid}{0.464\paperwidth}
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%\setlength{\threecolwid}{0.708\paperwidth}
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\setlength{\topmargin}{-0.5in}
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\usetheme{confposter}
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\usepackage{exscale}
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%-----------------------------------------------------------
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% The next part fixes a problem with figure numbering. Thanks Nishan!
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% When including a figure in your poster, be sure that the commands are typed
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% in the following order: \begin{figure}
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% \includegraphics[...]{...}
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% \caption{...}
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% \end{figure}
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% That is, put the \caption after the \includegraphics
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%-----------------------------------------------------------
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\usecaptiontemplate{
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\small
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\structure{\insertcaptionname~\insertcaptionnumber:}
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\insertcaption}
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%-----------------------------------------------------------
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% Define colours (see beamerthemeconfposter.sty to change these colour definitions)
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%-----------------------------------------------------------
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\setbeamercolor{block title}{fg=ngreen,bg=white}
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\setbeamercolor{block body}{fg=black,bg=white}
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\setbeamercolor{block alerted title}{fg=white,bg=dblue!70}
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\setbeamercolor{block alerted body}{fg=black,bg=dblue!10}
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%-----------------------------------------------------------
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% Some new commands
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%-----------------------------------------------------------
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\newcommand{\compresslist}{%
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\setlength{\itemsep}{1pt}%
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\setlength{\parskip}{0pt}%
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\setlength{\parsep}{0pt}%
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}
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%-----------------------------------------------------------
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% Name and authors of poster/paper/research
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%-----------------------------------------------------------
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%\title{Study of Muon Capture for $\boldsymbol{\mu-e}$ Conversion Experiments}
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\title{Measurement of Charged Particles Emission From Muon Capture}
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\author{Tran Hoai Nam}
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\institute{Department of Physics, Graduate School of Science, Osaka Univerity}
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%-----------------------------------------------------------
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% Start the poster itself
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%-----------------------------------------------------------
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\begin{document}
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\begin{frame}[t]
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\begin{columns}[t] % the [t] option aligns the column's content at the top
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%An empty column to help positioning the whole content at the center of the
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%paper
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\begin{column}
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{0.3\sepwid}
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\end{column}
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%-----------------------------------------------------------
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% Actual content
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%-----------------------------------------------------------
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\begin{column}{\onecolwid}
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% Introduction
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%\setbeamercolor{block alerted body}{fg=black,bg=white}
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\begin{block}{Introduction - Searches for cFLV}
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\begin{itemize}
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\item Charged lepton flavor violation (cFLV), if observed, is a clear
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evidence of new physics beyond the Standard Model (fig.
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\ref{fig:SMmeg}).
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\begin{figure}[h!]
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\begin{center}
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\includegraphics[width=0.8\onecolwid]{figs/SM-meg2}
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\end{center}
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\caption{One of the diagrams of massive neutrino contributions to
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$\mu \rightarrow e\gamma$}
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\label{fig:SMmeg}
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\end{figure}
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\item Event signal of $\mu - e$ conversion
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\item COMET schedule
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\end{itemize}
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\end{block}
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\vskip2ex
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\begin{block}{Introduction$\boldsymbol{\mu^-N \rightarrow e^-N}$}
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\vskip1ex
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\begin{itemize}
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\item Two major experiments search for $\mu-e$ conversion:
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COMET@J-PARC and Mu2e@FNAL
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\item Design issue from muon capture process: optimization of the
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target thickness and the absorber to reduce hit rate of protons
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\begin{figure}[]
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\includegraphics[width=22cm]{figs/phase1det}
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\caption{Concept of the tracking detector of COMET Phase I [ref]}
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\label{fig:phase1det}
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\end{figure}
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\item Current status: no data available for relevant target and
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energy range. Mu2e and COMET are using a parameterization of muon
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capture data taken from the Si active target in 1968.
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\begin{figure}[]
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\includegraphics[width=22cm]{figs/si-proton}
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\caption{Silicon data [ref]}
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\label{fig:sidata}
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\end{figure}
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\end{itemize}
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\end{block}
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\vskip2ex
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\begin{block}{The new measurement of charged particles emission
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from muon capture}
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\begin{itemize}
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\item A joint collaboration between COMET and Mu2e
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\item Goals of the experiment:
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\begin{itemize}
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\item[-] measure rate and energy spectra of the charged particles
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(p, d, $\alpha$) emitted after muon capture on some targets:
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Al, Si and Si (active target),
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\item[-] required precision: 5\% for both the rate and the energy
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spectra in the range from 2.5 $-$ 12 MeV
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\end{itemize}
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\item Will be conducted at TRIUMF (Canada) and PSI (Switzerland).
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\end{itemize}
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\vskip1ex
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\end{block}
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\end{column}
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%\begin{column}{0.3\sepwid}
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%\end{column} % empty spacer column
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% create a three-column-wide column and then we will split it up later
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\begin{column}{\twocolwid}
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% Methods
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\begin{block}{Methods}
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\begin{minipage}[t]{\onecolwid}
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\begin{figure}[]
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\includegraphics[width=0.95\onecolwid]{figs/setup}
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\caption{Schematic view of the experimental set up}
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\label{fig:setup}
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\end{figure}
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\end{minipage} % Do not put another blank line after this line because
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%that will mess up the alignment of the two minipages
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\begin{minipage}[t]{\onecolwid}
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The schematic view of the experimental set up is shown in the Figure
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\ref{fig:setup}:
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\begin{itemize}
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\item Low momentum muon beam: to ensure a high rate of stopped
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muons, and a well determined range of muons in the targets. A
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cloud muon of 30 $-$ 34 MeV/c from a surface muon channel is
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optimal.
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\item The charged particles are measured by dE/dx method
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by two pairs of silicon detectors. Active area of each silicon
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detector is 5$\times$5 cm$^2$, the dE detectors are 65 $\mu m$
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thick, and the E detectors are 1500 $\mu m$ thick.
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\item Muon normalization: muonic X-ray measurement by a germanium
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detector.
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\item Correction for energy loss of charged particles in the
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targets: using a response function obtained from the use of the
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active silicon target, where the energy loss can be measured. A
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waveform digitizer will be used to readout signals from the
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active target.
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\end{itemize}
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\end{minipage}
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\end{block}
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\vskip2ex
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% Simulation result
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\begin{block}{Calculations}
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\begin{itemize}
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\item Using Geant4, with assumptions:
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\begin{itemize}
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\item [-] Muon momentum 30 MeV/c, momentum spread 5\%.
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\item [-] Muon intensity: 10$^4$ muons/sec.
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\item [-] Proton emission rate is 0.15 per muon capture, the same
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value as being used in COMET and Mu2e calculations.
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\item [-] Efficiency of silicon detectors are 100\%.
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\item [-] Energy resolution (FWHM) of silicon detectors are: 140
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keV for the 65 $\mu m$-thick detectors, and 40 keV for the
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$140 \mu m$-thick detectors.
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\end{itemize}
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\item Simulation results of particle identification and rate
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estimation is shown in Figure \ref{fig:dEdx} and Table
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\ref{tb:rates}.
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\end{itemize}
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%\begin{minipage}[]{1.1\onecolwid}
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\begin{figure}[]
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\includegraphics[width=1.25\onecolwid]{figs/dEdx}
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\caption{Particle identification with two silicon detectors}
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\label{fig:dEdx}
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\end{figure}
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%\end{minipage}
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%\begin{minipage}[c]{0.9\onecolwid}
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%\begin{table}[htb!]
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%\begin{center}
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%\begin{tabular}{|c|c|c|c|c|c|} \hline
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%Target & \% Stopping & Event rate (Hz) & Event rate (Hz) \\
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%thickness ($\mu$m)& in target & All particles & Protons \\
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%\hline
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%50 & 2 & 8.1 & 1.0 \\ \hline
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%100 & 16 & 21.3 & 1.5 \\ \hline
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%150 & 38 & 39.9 & 2.1 \\ \hline
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%200 & 53 & 51.1 & 2.4 \\ \hline
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%\end{tabular}
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%\end{center}
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%\caption{Estimated event rates for various targets of different
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%thickness. }
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%\label{tb:rates}
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%\end{table}
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%\end{minipage}
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\end{block}
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%\begin{columns}[t,totalwidth=\twocolwid] % split up that three-column-wide column
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%\begin{column}{\onecolwid}
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%\setbeamercolor{block title}{fg=red,bg=white}%frame color
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%\setbeamercolor{block body}{fg=black,bg=white}%body color
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%\begin{block}{Block Colours}
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%For the standard blocks there are two colours; one for the title and one for the block body:\\
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%\begin{semiverbatim}
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%{\color{red}\\setbeamercolor}\{block title\}\newline \{fg=red,bg=white\}
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%\end{semiverbatim}
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%\begin{semiverbatim}
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%{\color{red}\\setbeamercolor}\{block body\}\newline \{fg=black,bg=white\}
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%\end{semiverbatim}
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%The \emph{fg} colour sets the text colour and \emph{bg} sets the background colour.
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%For the normal blocks it makes no sense to use a background colour other than white. You \emph{can} change it, but it will look weird!
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%\end{block}
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%\end{column}
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%\begin{column}{\onecolwid}
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%\setbeamercolor{block alerted title}{fg=black,bg=norange} % frame color
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%\setbeamercolor{block alerted body}{fg=black,bg=white} % body color
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%\begin{alertblock}{Alert Block Colours}
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%You can similarly modify the colours for alert blocks (but try not to overdo it):\\
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%\begin{semiverbatim}
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%{\color{red}\\setbeamercolor}\{block title\}\newline \{fg=black,bg=norange\}
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%\end{semiverbatim}
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%\begin{semiverbatim}
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%{\color{red}\\setbeamercolor}\{block body\}\newline \{fg=black,bg=white\}
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%\end{semiverbatim}
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%\end{alertblock}
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%\end{column}
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%\end{columns}
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%\vskip2.5ex
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\end{column}
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%\begin{column}{0.3\sepwid}
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%\end{column} % empty spacer column
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\begin{column}{\onecolwid}
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\begin{block}{Calculations (cont.)}
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\begin{table}[htb!]
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\begin{center}
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\scalebox{0.95}{
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\begin{tabular}{|c|c|c|c|c|c|} \hline
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Target & \% Stopping & Event rate (Hz) & Event rate (Hz) \\
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thickness ($\mu$m)& in target & All particles & Protons \\
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\hline
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50 & 2 & 8.1 & 1.0 \\ \hline
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100 & 16 & 21.3 & 1.5 \\ \hline
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150 & 38 & 39.9 & 2.1 \\ \hline
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200 & 53 & 51.1 & 2.4 \\ \hline
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\end{tabular}
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}
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\end{center}
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\caption{Estimated event rates for various targets of different
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thickness. }
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\label{tb:rates}
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\end{table}
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\end{block}
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\vskip2ex
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\begin{block}{Plan}
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\begin{itemize}
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\item July 2012: submitted the proposal to TRIUMF as experiment
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S1371, requested 36 shifts (3 weeks) beam time
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\item September 2012: the proposal was accepted with high priority
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\item Late November 2012: beam test
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\item Early 2013: physics run, 36 shifts
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\item A proposal will be submitted to PSI
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\end{itemize}
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\end{block}
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\vskip2ex
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\begin{block}{References}
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Some references and a graphic to show you how it's done:
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\small{\begin{thebibliography}{99}
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\bibitem{KLPL06} D.~W. Kribs, R. Laflamme, D. Poulin, M. Lesosky, Quantum Inf. \& Comp. \textbf{6} (2006), 383-399.
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\bibitem{zanardi97} P. Zanardi, M. Rasetti, Phys. Rev. Lett. \textbf{79}, 3306 (1997).
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\end{thebibliography}}
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\vspace{0.75in}
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\begin{center}
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\includegraphics[width=5in]{figs/canada.jpg}
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\end{center}
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\end{block}
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\end{column}
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\end{columns}
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\hspace{12mm}\begin{beamercolorbox}[wd=1165mm,colsep=0.15cm]{cboxb}\end{beamercolorbox}
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\end{frame}
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\end{document}
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