%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\font\big=cmr10 scaled\magstep3
\font\bigb=cmbx10 scaled\magstep3
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
\documentstyle[12pt,epsf]{ichep}

\hoffset 0mm
\voffset 18mm

\begin{document}

\title{Measurement of the Muon Lifetime$^{\dag}$}

\author{
J.~Doe{\it$^a$}, I.S. Astudent{\it$^b$}, and I. Didit{\it$^b$}
}

\affil{
{\sl $^a$ LEPSI, CRN Strasbourg 67037, France} \\
{\sl $^b$ Department of Physics,
                 The Ohio State University, Columbus, OH 43210,~~USA} \\
}

\abstract{
We have measured the muon lifetime using a stunning new aparatus.
Our results are inconsistent with those measured previously,
but could be explained by a new decay mode mediated by
the lepto-quark recently observed at HERA.
}

\twocolumn[\maketitle]

\fnm{1}{Presented by J.~Doe, E-mail: doe@ohstpy.mps.ohio-state.edu}

\section {Introduction}

The muon is an ideal particle to test weak decay dynamics.  In 
Table~\ref{tab:muon1} we list  some of the propertiesof the muon.

\begin{table}
\begin{footnotesize}
\begin{center}
\begin{tabular}{|lccc|} \hline
Property                                   & A         & B      & C       \\ 
\hline
1 [eV]                                     & 5.5       & 1.12    & 1.43   \\ 
2 [cm$^2$V$^{-1}$s$^{-1}$]                 & 1200      & 480     & 400    \\ 
3 [km/s]                                   & 220       & 82      & 80     \\ 
\hline
Mass Density [gm cm$^{-3}$]                & 3.5       & 2.33    & 5.32   \\ 
Atomic Charge                              & 6         & 14      &  31    \\
\hline
\end{tabular}
\end{center}
\end{footnotesize}
\caption[tab:muon1]{\small
The physical properties of muons}
\label{tab:muon1}
\end{table}

In the context of the Fermi theory, the muon lifetime is
predicted to be
\begin{equation}
\Gamma = \#G_F m_\mu^5
\end{equation}

A survey of previous experiments may be found in~\cite{NIM1},
not that we bothered to read them.
 

\section{Apparatus}

\begin{figure}
\begin{center}
\mbox{\epsfxsize 8.5cm  \epsfbox{mu_figure.eps}}
\end{center}
\caption[Apparatus]
{The experimental apparatus used to measue the muon lifetime.}
\label{fig:Apparatus}
\end{figure}
Figure~\ref{fig:Apparatus} shows the apparatus.


\section{Conclusions}

Look for us in Stockholm.



\section{References}

\begin{thebibliography}{99}
\bibitem{NIM1} M. Franklin {\it et al.},
               Nucl. Instr. and Meth. {\bf A315} (1992) 39.
\bibitem{NIM2} L. Lederman {\it et al.},
               Nucl. Instr. and Meth. {\bf A315} (1952) 39.
\end{thebibliography}

\end{document}
