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\title{\boldmath{ $\bar{\Sigma}^0(1660)$}\ \ \ \ \ \ \ $***$}
\maketitle
The $\bar{\Sigma}^0(1660)$ is a member of the triplet from the first excited nucleon-like multiplet. The mass and width are taken from \cite{Yao:2006px}. The branching ratios are estimated using the information from \cite{Yao:2006px}. The lower limit on the mass is set so that the dominant $\Lambda\pi$ mode is allowed and the upper limit is set to five times the particle's width. The $\bar{\Sigma}^0(1660)$ is included in EvtGen although different choices are made for the %\Lambda\pi$ and $\Sigma\pi$ modes. The branching ratios are allowed to vary with the off-shell mass of the particle to avoid the subdominant $NK$ mode being selected below threshold.
The $\bar{\Sigma}^0(1660)$ has mass $1660$~MeV and is unstable. The $\bar{\Sigma}^0(1660)$ has spin $1/2$, charge $0$ and is colour neutral.
 The $\bar{\Sigma}^0(1660)$ is a baryon$40$plet.The $\bar{\Sigma}^0(1660)$ has width $100$~MeV. The lower limit on the mass of the particle is $400$~MeV and the upper limit is $500$~MeV. These are the deviations from the on-shell value. The branching ratios are allowed to vary with the off-shell mass of the particle.
The properties of the particle and its antiparticle are taken to be charge-conjugate to each other.
 The PDG code is -13212.
\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 $\bar{\Sigma}^0(1660)$ (continues).}
\endfoot
\caption{The decay modes of the $\bar{\Sigma}^0(1660)$.}
\endlastfoot
\label{tab:-13212decaymodes}
0.445000 & $****$ & on & $ \bar{\Lambda}^0, \pi^0 $  & Decay of $\bar{\Sigma}^0(1660)$. The branching ratio is half of the remainder after the $NK$ mode is included.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
0.222500 & $****$ & on & $ \bar{\Sigma}^-, \pi^+ $  & Decay of $\bar{\Sigma}^0(1660)$. The branching ratio is half of the remainder after the $NK$ mode is included.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
0.222500 & $****$ & on & $ \bar{\Sigma}^+, \pi^- $  & Decay of $\bar{\Sigma}^0(1660)$. The branching ratio is half of the remainder after the $NK$ mode is included.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
0.055000 & $****$ & on & $ \bar{n}^0, K^0 $  & Decay of $\bar{\Sigma}^0(1660)$. The branching ratio is the average of the results quoted in \cite{Yao:2006px}.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
0.055000 & $****$ & on & $ \bar{p}^-, K^+ $  & Decay of $\bar{\Sigma}^0(1660)$. The branching ratio is the average of the results quoted in \cite{Yao:2006px}.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
\end{longtable}The $\bar{\Sigma}^0(1660)$ decay modes are given in Table~\ref{tab:-13212decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|Sigma(1660)0Mass| for the $\bar{\Sigma}^0(1660)$.
The width generator is \verb|Sigma(1660)0Width| for the $\bar{\Sigma}^0(1660)$.

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 The particle was checked by Peter Richardson at 9:35:30 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 16:24:39 on the 10th of October 2006.

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