% particle data information automatically produced from the herwig database
\documentclass[a4paper]{article}
\usepackage{cite,longtable}
\bibliographystyle{JHEP}
\topmargin -1.5cm
\textheight 26cm
\textwidth 20cm
\oddsidemargin -2cm
\evensidemargin 0cm
\begin{document}
\title{\boldmath{ $K^0_S$}\ \ \ \ \ \ \ $*****$}
\maketitle
The $K^0_S$ is the lighter of the two mesons produced by $K^0-\bar{K}^0$ mixing. The mass and lifetime are taken from \cite{Yao:2006px} as are the branching ratios although with minor adjustments to ensure the branching ratios sum to one.
The $K^0_S$ has mass $497.648$~MeV and is unstable. The $K^0_S$ has spin $0$, charge $0$ and is colour neutral.
 The $K^0_S$ is a mesonThe properties of the particle and its antiparticle are taken to be charge-conjugate to each other.
 The decay length is $0.026842$~m. The PDG code is 310.
\setlongtables
\begin{longtable}[t]{|c|c|c|p{1in}|p{2.5in}|c|}
\hline
Branching & Rating & On/ & Outgoing  & Description & Decayer  \\ 
Ratio     &                                 & Off & Particles &             &         \\ 
\hline
\endhead
\caption{The decay modes of the $K^0_S$ (continues).}
\endfoot
\caption{The decay modes of the $K^0_S$.}
\endlastfoot
\label{tab:310decaymodes}
0.692240 & $*****$ & on & $ \pi^+, \pi^- $  & Hadronic decay of $K^0_S$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
0.307006 & $*****$ & on & $ \pi^0, \pi^0 $  & Hadronic decay of $K^0_S$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
0.000352 & $*****$ & on & $ \pi^-, e^+, \nu_e $  & Semi-leptonic decay of $K^0_S$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME101 \\ 
\hline
0.000352 & $*****$ & on & $ \pi^+, e^-, \bar{\nu}_e $  & Semi-leptonic decay of $K^0_S$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME101 \\ 
\hline
0.000047 & $*****$ & on & $ \pi^+, \pi^-, e^-, e^+ $  & Hadronic decay of $K^0_S$ with an electron-positron pair from QED radiation with branching ratio from \cite{Yao:2006px}.   & Herwig::Mambo::Mambo \\ 
\hline
0.000003 & $*****$ & on & $ \gamma, \gamma $  & Radiative decay of $K^0_S$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
\end{longtable}The $K^0_S$ decay modes are given in Table~\ref{tab:310decaymodes} and the total branching ratio is $1$.


 There is no mass generator for the $K^0_S$.
 There is no width generator for the $K^0_S$.

\bibliography{particles}


 The particle was checked by Peter Richardson at 16:21:45 on the 15th of May 2008. The most recently changed decay mode was modified at 19:14:56 on the 10th of May 2008. The particle data was last modified at 16:24:39 on the 10th of October 2006.

\end{document}
