% 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{ $\Xi^-(1820)$}\ \ \ \ \ \ \ $***$}
\maketitle
 The $\Xi^-(1820)$ is a member of the isospin doublet containing two strange quarks from the first spin $3/2$ nucleon like $SU(5)$ multiplet. The mass and width are taken from \cite{Yao:2006px}. The branching ratios are uncertain and the numbers given below are calculated using the ratios of the various modes to the $\Lambda K$ mode. This gives a higher result for the dominant mode, and consquently lower values for the other modes, than the one measurement of all the modes but is consistent given the errors. The $\Xi^-(1820)$ is allowed to be off-shell by five times the width.
The $\Xi^-(1820)$ has mass $1823$~MeV and is unstable. The $\Xi^-(1820)$ has spin $3/2$, charge $-1$ and is colour neutral.
 The $\Xi^-(1820)$ is a baryon$40$plet.The $\Xi^-(1820)$ has width $24$~MeV. The lower limit on the mass of the particle is $120$~MeV and the upper limit is $120$~MeV. These are the deviations from the on-shell value. The branching ratios are fixed.
The properties of the particle and its antiparticle are taken to be charge-conjugate to each other.
 The PDG code is 13314.
\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 $\Xi^-(1820)$ (continues).}
\endfoot
\caption{The decay modes of the $\Xi^-(1820)$.}
\endlastfoot
\label{tab:13314decaymodes}
0.550000 & $***$ & on & $ \Lambda^0, K^- $  & Decay of $\Xi^-(1820)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3Strong3 \\ 
\hline
0.140000 & $***$ & on & $ \Xi^{*0}, \pi^- $  & Decay of $\Xi^-(1820)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetDecupletScalar::SU3OctetDecuplet3 \\ 
\hline
0.086667 & $***$ & on & $ \Sigma^-, \bar{K}^0 $  & Decay of $\Xi^-(1820)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3Strong3 \\ 
\hline
0.073333 & $***$ & on & $ \Xi^0, \pi^- $  & Decay of $\Xi^-(1820)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3Strong3 \\ 
\hline
0.070000 & $***$ & on & $ \Xi^{*-}, \pi^0 $  & Decay of $\Xi^-(1820)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetDecupletScalar::SU3OctetDecuplet3 \\ 
\hline
0.043333 & $***$ & on & $ \Sigma^0, K^- $  & Decay of $\Xi^-(1820)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3Strong3 \\ 
\hline
0.036667 & $***$ & on & $ \Xi^-, \pi^0 $  & Decay of $\Xi^-(1820)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3Strong3 \\ 
\hline
\end{longtable}The $\Xi^-(1820)$ decay modes are given in Table~\ref{tab:13314decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|Xi(1820)-Mass| for the $\Xi^-(1820)$.
The width generator is \verb|Xi(1820)-Width| for the $\Xi^-(1820)$.

\bibliography{particles}


 The particle was checked by Peter Richardson at 9:30:10 on the 4th of February 2009. The most recently changed decay mode was modified at 20:42:28 on the 24th of July 2005. The particle data was last modified at 16:24:39 on the 10th of October 2006.

\end{document}
