\begin{longtable}{p{1.5cm}p{12cm}}
		\toprule
		\multicolumn{1}{c}{{\textbf{Section} \texttt{dipoles}}} & \multicolumn{1}{c}{{\textbf{Description}}} \\ 
		\midrule
		{\tt aii} &
		A double precision variable which can be used to
		limit the kinematic range for the subtraction of initial-initial dipoles
		as suggested by Trocsanyi and Nagy~\cite{Nagy:2003tz}.   
		The value {\tt aii=1} corresponds 
		to standard Catani-Seymour subtraction.\\
		{\tt aif} &
		A double precision variable which can be used to
		limit the kinematic range for the subtraction of initial-final dipoles
		as suggested by Trocsanyi and Nagy~\cite{Nagy:2003tz}.   
		The value {\tt afi=1} corresponds 
		to standard Catani-Seymour subtraction.\\
		{\tt afi} &
		A double precision variable which can be used to
		limit the kinematic range for the subtraction of final-initial dipoles
		as suggested by Trocsanyi and Nagy~\cite{Nagy:2003tz}.   
		The value {\tt afi=1} corresponds 
		to standard Catani-Seymour subtraction.\\
		{\tt aff} &
		A double precision variable which can be used to
		limit the kinematic range for the subtraction of final-final dipoles
		as suggested by Trocsanyi and Nagy~\cite{Nagy:2003tz}.   
		The value {\tt aff=1} corresponds 
		to standard Catani-Seymour subtraction.\\
		{\tt bfi} &
		A double precision variable which can be used to
		limit the kinematic range for the subtraction of final-initial dipoles
		in the photon fragmentation case.\\
		{\tt bff} &
		A double precision variable which can be used to
		limit the kinematic range for the subtraction of final-final dipoles
		in the photon fragmentation case.\\
		\bottomrule
	\end{longtable}