How to implement matrix element in MG5
Asked by
Li
Hi,
I am trying to generate a loop process and a tree level process and their interference. However it seems MG5 do not support generate both LO/NLO process at the same time.
So I am thinking if it's possible to calculate the matrix element by hand, say M_{loop}, M_{tree} and implement them in MG5? If it's not possible, is there any way for MG5 to calculate the interference term for LO/NLO processes?
I am also thinking about two loop processes, which seems MG5 can't do. In this case, I also wonder if I can implement calculated matrix element by hand in MG5.
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