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13 lines
628 B
13 lines
628 B
\midheading{Direct $\gamma$ production, processes 280--282}
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\label{subsec:dirphot}
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These processes represent the production a real photon. Since this
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process includes a real photon, the cross section diverges when the
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photon is very soft or in the direction of the beam. Thus in order to
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produce sensible results, the input file must supply values for both
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{\tt gammptmin} and {\tt gammrapmax}. This will ensure that
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the cross section is well-defined.
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Currently the code computes this process up to NLO accuracy. The
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extension to NNLO~\cite{Campbell:2016lzl,Campbell:2017dqk,Campbell:2018wfu}
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has not yet been made public.
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