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% TeX'ing this file requires that you have AMS-LaTeX 2.0 installed
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\documentclass[twocolumn,nofootinbib,amsmath,amssymb,a4paper]{revtex4}

\usepackage{graphicx}% Include figure files
\usepackage{dcolumn}% Align table columns on decimal point
\usepackage{bm}

\begin{document}

\title{Title}% Force line breaks with \\

\author{A. Author}
 \email{Author@institution.edu}
\affiliation{%
Authors' institution and/or address\\
This line break forced with \textbackslash\textbackslash
}%

\begin{abstract}
 This is a template for CKM2006 proceedings.
\end{abstract}

\maketitle

\section{Instruction}
We ask all speakers in the plenary and parallel sessions to write a
contribution. WG conveners are asked to write a summary of each WG.
The page limitation is 4 pages max. for each parallel talk,
6 pages max. for each plenary talk and no limit for WG summary talk
with A4 paper in the double-column format along the REV\TeX{} 4 distribution.
Deadlines for submission are 
the end of February for parallel talk and plenary talk,
and the end of March for WG summary.
The proceedings will be distributed as a KEK-Report.
Each speaker is encouraged to post his/her contribution on hep-ex/ph/lat.

\section{Examples}
This section includes a few examples of citations, figures, tables and equations in
REV\TeX{} 4 format.
For more details about REV\TeX{} 4, see the homepage~\cite{bib:revtex4}.

\subsection{Citations and footnotes}
CKM~\cite{bib:C,bib:KM} and PDG2006~\cite{bib:PDG2006} are examples for
citations.
A footnote can be at the bottom of the page\footnote{this is a footnote at the bottom of the page.}
or interleaved with the references~\cite{bib:footnote}.

\subsection{Figures and Tables}
Figure~\ref{fig:narrow} is a figure in a single column.
An example for a wide figure is Fig.~\ref{fig:wide}.
Tables~\ref{tab:narrow} and \ref{tab:wide} are examples for tables.

\begin{figure}
\includegraphics[width=0.4\textwidth]{ckm2006logo}
\caption{\label{fig:narrow} A figure caption.}
\end{figure}

\begin{figure*}
\includegraphics{ckm2006logo}
\caption{\label{fig:wide}Use the figure* environment to get a wide
figure that spans the page in \texttt{twocolumn} formatting.}
\end{figure*}

\begin{table}
\caption{\label{tab:narrow}
A table caption.
}
\begin{ruledtabular}
\begin{tabular}{lcr}
contribution type & page limit & deadline \\
\hline
parallel talk   & 4 pages & end of Feb. 2007 \\
plenary talk    & 6 pages & end of Feb. 2007 \\
WG summary talk & no page limit & end of Mar. 2007\\
\end{tabular}
\end{ruledtabular}
\end{table}

\begin{table*}
\caption{\label{tab:wide}This is a wide table that spans the page
width in \texttt{twocolumn} mode. It is formatted using the
\texttt{table*} environment.}
\begin{ruledtabular}
\begin{tabular}{cccccc}
$K^0\pi^+$                             & 
$24.1\pm 1.7$                          & 
$23.9\pm1.1\pm1.0$                     & 
$22.9^{+0.8}_{-0.7}\pm{1.3}$           & 
$18.8^{+3.7+2.1}_{-3.3-1.8}$           & 
$23.1 \pm 1.0$                         \\
$K^+\pi^0$                             & 
$12.1\pm 0.8$                          & 
$13.3\pm0.6\pm0.6$                     & 
$12.4\pm0.5^{+0.7}_{-0.6}$             & 
$12.9^{+2.4+1.2}_{-2.2-1.1}$           & 
$12.8 \pm 0.6$                         \\
$\eta' K^+$                           & 
$70.5\pm3.5$                           & 
$68.9\pm2.0\pm3.2$                     & 
$69.2\pm2.2\pm3.7$                     & 
$80^{+10}_{-9}\pm7$                    & 
$69.7^{+2.8}_{-2.7}$                   \\
\end{tabular}
\end{ruledtabular}
\end{table*}

\subsection{Equations}
A example of a equation in a single-line:
\begin{equation}
    V_{ud}^{}V_{ub}^{*}+V_{cd}^{}V_{cb}^{*}+V_{td}^{}V_{tb}^{*}=0.
    \label{eq:eq1}
\end{equation}

A multiline equation or a array of equations is formatted using the
\texttt{eqnarray} environment:
\begin{eqnarray}
    \phi_1 &=& \beta,  \nonumber \\
    \phi_2 &=& \alpha, \\
    \phi_3 &=& \gamma. \nonumber 
    \label{eq:eqnarray}
\end{eqnarray}

\newpage

A long equation that is too long to fit in a multiline in a single column can be written in
\texttt{widetext} environment:
\begin{widetext}
\begin{equation}
\label{eq:wideeq}
{\cal B}(B^{-}\rightarrow\tau^{-}\bar{\nu}_{\tau})
= \frac{G_{F}^{2}m_{B}m_{\tau}^{2}}{8\pi}\left(1-\frac{m_{\tau}^{2}}
{m_{B}^{2}}\right)^{2}f_{B}^{2}|V_{ub}|^{2}\tau_{B}.
\end{equation}
\end{widetext}

\begin{acknowledgments}
 Acknowledgments comes here.
\end{acknowledgments}

\begin{thebibliography}{99}
\bibitem{bib:revtex4}
  REV\TeX{}4 Home Page, http://authors.aps.org/revtex4/
\bibitem{bib:C}
  N.~Cabibbo, Phys. Rev. Lett. {\bf 10}, 531 (1963).

\bibitem{bib:KM}
  M.~Kobayashi and T.~Maskawa, Prog. Theor. Phys. {\bf 49}, 652 (1973).

\bibitem{bib:PDG2006}
  W.-M.~Yao {\it et al.}, J. Phys. G {\bf 33}, 1(2006).

\bibitem{bib:footnote}
  This is a footnote in the references.

\end{thebibliography}

\end{document}
