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<title>MadGraph 5 Processes</title>
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<h2>MadGraph 5 Processes</h2>

By far the easiest way to implement new processes into PYTHIA 8 is 
by using the matrix-element generator MadGraph 5. This program has 
an option to output the results of a matrix-element calculation 
as a set of PYTHIA 8 C++ classes (plus further auxiliary code), 
that can then be linked and used as 
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