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\title{\boldmath{ $\bar{K}^0$}\ \ \ \ \ \ \ $*****$}
\maketitle
 The $\bar{K}^0$ is the neutral member of the strange isospin doublet from the $1^1S_0$ multiplet. It mixes with the anti-particle to produce the physical $K^0_{L,S}$ states. The mass is taken from \cite{Yao:2006px}.
The $\bar{K}^0$ has mass $497.648$~MeV and is unstable. The $\bar{K}^0$ has spin $0$, charge $0$ and is colour neutral.
 The $\bar{K}^0$ is a meson and is from the $1^1S_0$ multiplet.The properties of the particle and its antiparticle are taken to be charge-conjugate to each other.
 The PDG code is -311.
\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 $\bar{K}^0$ (continues).}
\endfoot
\caption{The decay modes of the $\bar{K}^0$.}
\endlastfoot
\label{tab:-311decaymodes}
0.500000 & $*****$ & on & $ K^0_L $  & Decay of the $\bar{K}^0$ to implement the mixing. This should probably be replaced with something more sophisticated.   & Herwig::Hw64::DecayME0 \\ 
\hline
0.500000 & $*****$ & on & $ K^0_S $  & Decay of the $\bar{K}^0$ to implement the mixing. This should probably be replaced with something more sophisticated.   & Herwig::Hw64::DecayME0 \\ 
\hline
\end{longtable}The $\bar{K}^0$ decay modes are given in Table~\ref{tab:-311decaymodes} and the total branching ratio is $1$.


 There is no mass generator for the $\bar{K}^0$.
 There is no width generator for the $\bar{K}^0$.

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 The particle was checked by Peter Richardson at 22:9:49 on the 15th of October 2006. 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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