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\title{\boldmath{ $\omega$}\ \ \ \ \ \ \ $*****$}
\maketitle
The $\omega$ is the lightest isospin singlet from isospin triplet for the $1^3S_1$ multiplet. The modes and properties are taken from \cite{Yao:2006px} with the lepton modes averaged. The modes with photons which can be produced by QED radiation are included in the mode without the radiation. The $\omega$ is allowed to be off-shell by ten times the width.
The $\omega$ has mass $782.65$~MeV and is unstable. The $\omega$ has spin $1$, charge $0$ and is colour neutral.
 The $\omega$ is a meson and is from the $1^3S_1$ multiplet.The $\omega$ has width $8.49$~MeV. The lower limit on the mass of the particle is $84.9$~MeV and the upper limit is $84.9$~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 223.
\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 $\omega$ (continues).}
\endfoot
\caption{The decay modes of the $\omega$.}
\endlastfoot
\label{tab:223decaymodes}
0.891174 & $*****$ & on & $ \pi^+, \pi^-, \pi^0 $  & The decay of the $\omega$ to three pions. The branching ratio is taken from \cite{Yao:2006px} with a small, order $10^{-4}$ addition to ensure the modes sum to one.   & Herwig::VectorMeson3Pion::Vector3Pion \\ 
\hline
0.090250 & $*****$ & on & $ \pi^0, \gamma $  & The decay of the $\omega$ to a pion and photon. The branching ratio is taken from \cite{Yao:2006px} with the other neutrals mode added here.   & Herwig::VectorMesonVectorPScalar::VectorVP \\ 
\hline
0.017000 & $*****$ & on & $ \pi^+, \pi^- $  & The isospin violating decay of the $\omega$ to two pions with branching ratio taken from \cite{Yao:2006px}.   & Herwig::VectorMeson2Meson::Vector2Meson \\ 
\hline
0.000797 & $****$ & on & $ \pi^0, e^-, e^+ $  & The decay of the $\omega$ to a pion and an electron-positron pair the branching ratio is calculated by averaging the measured electron and muon branching ratios from \cite{Yao:2006px} using the decayer. This value is within the experimental error from \cite{Yao:2006px}.   & Herwig::VectorMesonPScalarFermions::VectorVPff \\ 
\hline
0.000490 & $****$ & on & $ \eta, \gamma $  & The decay of $\omega$ to $\eta$ and a pion with branching ratio taken from \cite{Yao:2006px}.   & Herwig::VectorMesonVectorPScalar::VectorVP \\ 
\hline
0.000078 & $****$ & on & $ \pi^0, \mu^-, \mu^+ $  & The decay of the $\omega$ to a pion and an $\mu^+\mu^-$ pair the branching ratio is calculated by averaging the measured electron and muon branching ratios from \cite{Yao:2006px} using the decayer. This value is within the experimental error from \cite{Yao:2006px}.   & Herwig::VectorMesonPScalarFermions::VectorVPff \\ 
\hline
0.000072 & $****$ & on & $ e^-, e^+ $  & The decay of the $\omega$ to an electron-positron pair. The branching ratio is obtained by averaged the electron and muon channel from \cite{Yao:2006px} including a kinematic factor from the decayer.   & Herwig::VectorMeson2Fermion::Vector2Leptons \\ 
\hline
0.000072 & $****$ & on & $ \mu^-, \mu^+ $  & The decay of the $\omega$ to an electron-positron pair. The branching ratio is obtained by averaged the electron and muon channel from \cite{Yao:2006px} including a kinematic factor from the decayer.   & Herwig::VectorMeson2Fermion::Vector2Leptons \\ 
\hline
0.000067 & $***$ & on & $ \pi^0, \pi^0, \gamma $  & The decay of $\omega$ to two pions and a photon, with branching ratio taken from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
\end{longtable}The $\omega$ decay modes are given in Table~\ref{tab:223decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|omegamass| for the $\omega$.
The width generator is \verb|omegawidth| for the $\omega$.

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 The particle was checked by Peter Richardson at 12:32:13 on the 18th of October 2006. The most recently changed decay mode was modified at 12:31:14 on the 13th of October 2006. The particle data was last modified at 12:13:34 on the 13th of October 2006.

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