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\title{\boldmath{ $\bar{\Xi}^0(1690)$}\ \ \ \ \ \ \ $***$}
\maketitle
This particle has been observed but the width, spin and decay modes are uncertain. We have included it to complete the $SU(3)$ multiplet although it is not assigned this r\^{o}le in \cite{Yao:2006px}. The width is chosen to agree with the latest measurement, with most events. The branching ratios are calculated from the latest value of the ratio of $\Lambda \bar{K}$ to $\Sigma K$ assuning these are the only modes. The lower limit on the mass is set so that the $\Lambda\bar{K}$ mode is allowed and the upper limit to ten times the width.
The $\bar{\Xi}^0(1690)$ has mass $1690$~MeV and is unstable. The $\bar{\Xi}^0(1690)$ has spin $1/2$, charge $0$ and is colour neutral.
 The $\bar{\Xi}^0(1690)$ is a baryon$40$plet.The $\bar{\Xi}^0(1690)$ has width $10$~MeV. The lower limit on the mass of the particle is $10$~MeV and the upper limit is $100$~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 -13322.
\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 $\bar{\Xi}^0(1690)$ (continues).}
\endfoot
\caption{The decay modes of the $\bar{\Xi}^0(1690)$.}
\endlastfoot
\label{tab:-13322decaymodes}
0.571429 & $***$ & on & $ \bar{\Lambda}^0, K^0 $  & Decay of $\bar{\Xi}^0(1690)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
0.285714 & $***$ & on & $ \bar{\Sigma}^-, K^+ $  & Decay of $\bar{\Xi}^0(1690)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
0.142857 & $***$ & on & $ \bar{\Sigma}^0, K^0 $  & Decay of $\bar{\Xi}^0(1690)$ with branching ratio calculated as described above.   & Herwig::SU3BaryonOctetOctetScalar::SU3StrongRoper \\ 
\hline
\end{longtable}The $\bar{\Xi}^0(1690)$ decay modes are given in Table~\ref{tab:-13322decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|Xi(1690)0Mass| for the $\bar{\Xi}^0(1690)$.
The width generator is \verb|Xi(1690)0Width| for the $\bar{\Xi}^0(1690)$.

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 The particle was checked by Peter Richardson at 9:33:36 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 8:33:49 on the 4th of February 2009.

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