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\title{\boldmath{ $\Sigma_b^-$}\ \ \ \ \ \ \ $***$}
\maketitle
This particle has been observed and its mass measured \cite{cdf:2007rw} . The mass is such that the only strong decay is to the $\Lambda_b$ and a pion and therefore we assumed that this is the only mode. The width is calculated using the decayer and the same strong coupling as for the decay of the $\Sigma_c$ baryons. The $\Sigma_b^-$ is allowed to be off-shell by five times the width.
The $\Sigma_b^-$ has mass $5815.2$~MeV and is unstable. The $\Sigma_b^-$ has spin $1/2$, charge $-1$ and is colour neutral.
 The $\Sigma_b^-$ is a baryon and is from the $(56,0^+_0)$ $40$plet.The $\Sigma_b^-$ has width $8.6$~MeV. The lower limit on the mass of the particle is $43$~MeV and the upper limit is $43$~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 5112.
\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 $\Sigma_b^-$ (continues).}
\endfoot
\caption{The decay modes of the $\Sigma_b^-$.}
\endlastfoot
\label{tab:5112decaymodes}
1.000000 & $**$ & on & $ \Lambda_b^0, \pi^- $  & Only kinematically possible strong decay mode of $\Sigma_b^-$ which is assumed to be the only mode.   & Herwig::StrongHeavyBaryon::HeavyStrong \\ 
\hline
\end{longtable}The $\Sigma_b^-$ decay modes are given in Table~\ref{tab:5112decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|Sigma_b-Mass| for the $\Sigma_b^-$.
The width generator is \verb|Sigma_b-Width| for the $\Sigma_b^-$.

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 The particle was checked by Peter Richardson at 9:42:30 on the 4th of February 2009. The most recently changed decay mode was modified at 23:10:55 on the 3rd of April 2005. The particle data was last modified at 13:27:31 on the 6th of July 2008.

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