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57 lines
2.8 KiB
57 lines
2.8 KiB
\begin{longtable}{p{1.5cm}p{12cm}}
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\hline
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\multicolumn{1}{c}{{\textbf{Section} \texttt{general}}} & \multicolumn{1}{c}{{\textbf{Description}}} \\
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\hline
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\texttt{nproc} &
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The process to be studied is given by
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choosing a process number, according to Tables
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in Section~\ref{MCFMprocs}.
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$f(p_i)$ denotes a generic partonic jet. Processes denoted as
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``LO'' may only be calculated in the Born approximation. For photon
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processes, ``NLO+F'' signifies that the calculation may be performed
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both at NLO and also including the effects of photon fragmentation
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and experimental isolation. In contrast, ``NLO'' for a process involving
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photons means that no fragmentation contributions are included and isolation
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is performed according to the procedure of Frixione~\cite{Frixione:1998jh}. \\
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\texttt{part} &
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The type of calculation to be performed. Possible values are given in
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Tables~\ref{tab:partchoicesfo} and~\ref{tab:partchoicesresum}. \\
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\texttt{runstring} &
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When MCFM is run, it will write output to several files. The
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label {\tt runstring} will be included in the names of these files.
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\\
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\texttt{rundir} &
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Directory for output and snapshot files
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\\
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\texttt{sqrts} & Center of mass energy in GeV. \\
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\texttt{ih1}, \texttt{ih2} &
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The identities of the incoming hadrons
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may be set with these parameters, allowing simulations for both
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$p{\bar p}$ (such as the Tevatron) and $pp$ (such as the LHC).
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Setting {\tt ih1} equal to ${\tt +1}$ corresponds to
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a proton, whilst ${\tt -1}$ corresponds to an anti-proton. \\
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% Values greater than {\tt 1000d0} represent a nuclear collision,
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% as described in Section~\ref{sec:nucleus}. \\
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\texttt{zerowidth} &
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When set to {\tt .true.} then all
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bosons are produced on-shell. This is appropriate for calculations
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of {\it total} cross-sections (such as when using {\tt removebr} equal
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to {\tt .true.}, below). When interested in decay products of the
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bosons this should be set to {\tt .false.}. \\
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\texttt{removebr} &
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When set to {\tt .true.} the branching ratios are
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removed for unstable particles such as vector bosons or top quarks. See the
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process notes in Section~\ref{sec:specific}, or the process
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web-pages accessed via the \href{\mcfmprocs/proclist.html}{list of processes}
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for further details. \\
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\texttt{ewcorr} &
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Specifies whether or not to compute EW corrections
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for the process. Default is {\tt none}. May be set to {\tt exact}
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or {\tt sudakov} for processes {\tt 31} (neutral-current DY),
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{\tt 157} (top-pair production) and {\tt 190} (di-jet production).
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For more details see section~\ref{subsec:EW}. \\
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% {\texttt{vdecayid}}, {\texttt{v34id}}, {\texttt{v56id}} &
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% Flags to manually set the decays of vector bosons (34) and
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% (56) (experimental, not for general use). \\
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\hline
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\end{longtable}
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