% particle data information automatically produced from the herwig database
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\title{\boldmath{ $t$}\ \ \ \ \ \ \ $*****$}
\maketitle
The top quark is the isospin=$1/2$ third generation quark. The large top quark mass, taken from \cite{Yao:2006px}, means that it decays before it hadronizes. The branching ratios for the decays to bottom and a W boson, including the W decay, are taken to be the same as those of the $W$ boson.
The $t$ has mass $174200$~MeV and is unstable. The $t$ has spin $1/2$, charge $2/3$ and is in a colour triplet.
 The $t$ is a quark.
The $t$ has width $1400$~MeV. The lower limit on the mass of the particle is $14000$~MeV and the upper limit is $14000$~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 6.
\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 $t$ (continues).}
\endfoot
\caption{The decay modes of the $t$.}
\endlastfoot
\label{tab:6decaymodes}
0.321586 & $*****$ & on & $ \bar{d}, u, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
0.320957 & $*****$ & on & $ \bar{s}, c, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
0.108059 & $*****$ & on & $ e^+, \nu_e, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
0.108059 & $*****$ & on & $ \mu^+, \nu_\mu, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
0.107980 & $*****$ & on & $ \tau^+, \nu_\tau, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
0.016440 & $*****$ & on & $ \bar{s}, u, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
0.016407 & $*****$ & on & $ \bar{d}, c, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
0.000512 & $*****$ & on & $ \bar{b}, c, b $  & Decay of $t$ with branching ratio taken to be the same as for W decay.   & Herwig::SMTop::Top \\ 
\hline
\end{longtable}The $t$ decay modes are given in Table~\ref{tab:6decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|TopMass| for the $t$.
The width generator is \verb|TopWidth| for the $t$.

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 The particle was checked by Peter Richardson at 17:55:12 on the 10th of May 2008. The most recently changed decay mode was modified at 16:32:27 on the 17th of September 2007. The particle data was last modified at 17:55:5 on the 10th of May 2008.

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