164 lines
7.6 KiB
TeX
164 lines
7.6 KiB
TeX
%--the poster is one beamer frame, so we have to start with:
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\begin{frame}[t]
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%--to seperate the poster in columns we can use the columns environment
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\begin{columns}[t] % the [t] options aligns the columns content at the top
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\begin{column}{0.28\paperwidth}% the right size for a 3-column layout
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%--abstract block--------------------------------------------------------
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\begin{alertblock}{Introduction}
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Charged lepton flavor violation (cLFV) has yet to be observed and is
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known to be sensitive to new physics beyond the Standard Model (SM).
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Various extensions of the SM predicts that cLFV occurs at a detectable
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branching ratio. Therefore, from experimental point of view, it is
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attractive to search for cLFV with more powerful beams and better
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detection technologies.
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Among the cLFV processes, $\mu-e$ conversion, a coherent neutrino-less
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conversion of muon to electron in the presence of a nucleus: \muecaz,
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is our interest. We have proposed a new search for $\mu -e$ conversion
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at J-PARC, the E21 experiment - \textcolor{red}{COMET}(
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\textcolor{red}{COherent Muon to Electron Transition}). The single
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event sensitivity (SES) of COMET will be $2.6\times10^{-17}$, which is
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10,000
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times better than that of the current experimental limit
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set by SINDRUM II at $7\times10^{-13}$.
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\end{alertblock}
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\begin{alertblock}{Staging approach of the COMET}
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In order to realize the COMET experiment, a two-stage approach has been
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taken. COMET Phase-I aims at an intermediate SES of $3\times10^{-15}$,
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which is an improvement of a factor of 100 compares to SINDRUM II. In
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addition, the COMET Phase-I will make direct measurement of the proton
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beam extinction and other potential background sources for the COMET
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Phase-II experiment, using the actual COMET beamline.
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\begin{figure}[h!]
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\begin{center}
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\includegraphics[width=0.95\onecolwid]{../figs/comet/comet_phase_1}
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\end{center}
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\caption{Schematic layout of the COMET}
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\label{fig:cometscheme}
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\end{figure}
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The COMET Phase-I funding has been approved. Experimental hall
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construction and beam
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line design are in progress, and expected to finish in 2015. The layout
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of the COMET beam line at Hadron Hall, J-PARC is shown in the Fig.
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\ref{fig:cometbeamline}. For the COMET Phase-I, we will
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construct the first 90 degrees of the muon beamline before extracting
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to the experimental area. Data taking is expected to start around 2016.
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\begin{figure}[h!]
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\begin{center}
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\includegraphics[width=0.95\onecolwid]{../figs/comet/comet_beamline}
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\end{center}
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\caption{COMET beam line at Hadron hall}
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\label{fig:cometbeamline}
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\end{figure}
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\end{alertblock}
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\end{column}
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%===rightcolumn=================================================================
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% here the the middle and right column are put into one big column, this allows
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% to change between 2 and 3 column style
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\begin{column}{0.60\paperwidth} %thats the big right column
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%\begin{block}{}
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%===two right columns===========================================================
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% we have to give the total width for the column wich is equal to the sum of
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% two colums and the space between them, this is needed to make shure the two
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% cols take all the space of the 'mother' column
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%\begin{columns}[t,totalwidth=0.60\paperwidth]
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% and then we put in two normal sized columns
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\begin{column}{0.28\paperwidth}
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\begin{alertblock}{Proton beam}
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COMET Phase-I will use an 8 GeV, 1 $\mu$A, slowly extracted proton beam
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from the J-PARC main ring (MR). One option for the bunch structure of
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the proton beam is shown in Fig \ref{fig:pbeam}.
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\begin{figure}[]
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\includegraphics[width=0.75\onecolwid]{../figs/comet/comet_pbeam_config}
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\caption{COMET proton beam acceleration bunch configuration}
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\label{fig:pbeam}
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\end{figure}
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\end{alertblock}
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%--the Left block-----------------------------------------------------------
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\begin{alertblock}{Pion and muon transportation beam}
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\begin{figure}[]
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\includegraphics[width=0.95\onecolwid]{../figs/comet/comet_p1_det_bg}
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\caption{COMET proton beam acceleration bunch configuration}
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\label{fig:bg_det}
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\end{figure}
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\end{alertblock}
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%\end{block}
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\vskip1ex
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% Methods
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\vskip2ex
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\end{column}
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%--the Right block--------------------------------------------------------------
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\begin{column}{\onecolwid}
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\begin{alertblock}{Detectors for COMET Phase I}
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\end{alertblock}
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\vskip2ex
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\begin{alertblock}{}
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\begin{figure}[]
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\includegraphics[width=0.95\onecolwid]{../figs/comet/comet_p1_det_bg}
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\caption{COMET proton beam acceleration bunch configuration}
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\label{fig:phys_det}
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\end{figure}
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\end{alertblock}
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\vskip2ex
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\begin{block}{References}
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\small{\begin{thebibliography}{99}
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%\bibitem{cdr} The COMET Collaboration, ``Conceptual Design Report for
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%Experimental Search for Lepton Flavor Violating $\mu^--e^-$
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%Conversion at
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%Sensitivity of $10^{-16}$ with a Slow-Extracted Bunched Proton Beam
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%(COMET)'', KEK-2009-10
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\bibitem{loi} The COMET Collaboration, ``Letter of Intent for Phase-I
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of the COMET Experiment at J-PARC'', J-PARC-2012-3
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\end{thebibliography}}
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\end{block}
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\end{column}
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\begin{figure}[h!]
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\begin{center}
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\includegraphics[width=0.95\twocolwid]{../figs/comet/comet_phase1_tracker.pdf}
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\end{center}
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\caption{Schematic lay out of the COMET Phase I}
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\label{fig:phase1}
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\end{figure}
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%\end{columns}
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%--wide text without block------------------------------------------------------
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%Those pictures where drawn with the TikZ package, which is a perfect tool if
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%you want to draw pictures or plot functions or data directly in \LaTeX. To
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%get an impression of the possibilities of this package have a look at its
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%manual \cite{pgf}. It is even possible to wonderfull frames around posters.
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%\vskip2ex
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\vskip3ex
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%--Conclusion block-------------------------------------------------------------
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% \begin{alertblock}{Conclusion}
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% As you can see it is possible to make your poster very colorfull. But in
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% most cases this will this will overload your poster. If you don't change
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% the color settings you will get the default look, which consits of some
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% shades of the jacobs blue and some decent green highlights. These colors
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% where chosen carefully to keep a consistent look of the poster. The
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% \emph{cpbgposter} style is installed our office computers, so you should be
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% able to compile this example out of the box with pdflatex. If you want to
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% work on your computer make sure that you have a recent TeX distribution
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% (TeXlive 2008, Miktex) and download the beamerthemecpbgposter.sty file from
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% our teamwork page and put it in your local TeX directory.
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%
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% If you have any questions, critics, ideas or if you just want to praise the
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% awesome dude who created this insanely great poster style then don't
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% hastitate to write an email to \emph{j.liebers@jacobs-university.de}
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%% guess what this command is god for!
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% \makeruleinbox
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%% it works, but causes some underfull/overfull \hbox warnings
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% \begin{center}
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% {\huge\vskip-1ex
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% {\color{nred}H}{\color{norange}a}{\color{nyellow}p}
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% {\color{ngreen}p}{\color{dblue}y}\\
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% \TeX'ing!}
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% \end{center}
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% \end{alertblock}
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\end{column}
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\end{columns}
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\end{frame}
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