% particle data information automatically produced from the herwig database
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\title{\boldmath{ $\chi_{b1}(2P)$}\ \ \ \ \ \ \ $***$}
\maketitle
The $\chi_{b1}(2P)$ is the excited pseudovector meson from the $2P$ level. The mass and exclusive modes are taken from \cite{Yao:2006px} but the width has not been measured. The width is taken from \cite{Kwong:1988ae}  and the $\chi_{b1}(2P)$ is allowed to be off-shell by ten times this width.
The $\chi_{b1}(2P)$ has mass $10255.46$~MeV and is unstable. The $\chi_{b1}(2P)$ has spin $1$, charge $0$ and is colour neutral.
 The $\chi_{b1}(2P)$ is a meson and is from the $2^3P_1$ multiplet.The $\chi_{b1}(2P)$ has width $0.0787$~MeV. The lower limit on the mass of the particle is $0.787$~MeV and the upper limit is $0.787$~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 120553.
\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 $\chi_{b1}(2P)$ (continues).}
\endfoot
\caption{The decay modes of the $\chi_{b1}(2P)$.}
\endlastfoot
\label{tab:120553decaymodes}
0.646800 & $**$ & on & $ g, g $  & Two gluon decay of $\chi_{b1}(2P)$ which is added to ensure the branching ratios sum to one.   & Herwig::Quarkonium::QDecayME0 \\ 
\hline
0.210000 & $****$ & on & $ \Upsilon(2S), \gamma $  & Radiative decay of $\chi_{b1}(2P)$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
0.085000 & $****$ & on & $ \Upsilon(1S), \gamma $  & Radiative decay of $\chi_{b1}(2P)$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
0.023600 & $*$ & on & $ \Upsilon_2(1D), \gamma $  & Radiative decay of $\chi_{b1}(2P)$ which has not been observed and is added with branching ratio taken from \cite{Kwong:1988ae} .   & Herwig::Hw64::DecayME0 \\ 
\hline
0.016300 & $***$ & on & $ \omega, \Upsilon(1S) $  & Decay of the $\chi_{b1}(2P)$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
0.009700 & $*$ & on & $ \Upsilon_1(1D), \gamma $  & Radiative decay of $\chi_{b1}(2P)$ which has not been observed and is added with branching ratio taken from \cite{Kwong:1988ae} .   & Herwig::Hw64::DecayME0 \\ 
\hline
0.005700 & $***$ & on & $ \chi_{b1}(1P), \pi^+, \pi^- $  & Decay of $\chi_{b1}(2P)$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
0.002900 & $***$ & on & $ \chi_{b1}(1P), \pi^0, \pi^0 $  & Decay of $\chi_{b1}(2P)$ with branching ratio from \cite{Yao:2006px}.   & Herwig::Hw64::DecayME0 \\ 
\hline
\end{longtable}The $\chi_{b1}(2P)$ decay modes are given in Table~\ref{tab:120553decaymodes} and the total branching ratio is $1$.


The mass generator is \verb|chi_b12Pmass| for the $\chi_{b1}(2P)$.
The width generator is \verb|chi_b12Pwidth| for the $\chi_{b1}(2P)$.

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 The particle was checked by Peter Richardson at 21:22:12 on the 23rd of April 2007. The most recently changed decay mode was modified at 21:4:56 on the 4th of November 2006. The particle data was last modified at 20:58:47 on the 4th of November 2006.

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