Formation of subprocesses
hey,
i stumbled upon an issue that might not be too important, but is bothering me anyway.
first i run:
./bin/mg5
generate p p > j j
output dijet
looking in the dijet/SubProcesses/ folder i find only 5 sub folders
P0_gg_gg
P0_gg_qq
P0_gq_gq
P0_qq_gg
P0_gg_qq
which is a very nice and efficient grouping of diagrams from what i understand.
now my question is, how come i do not get the same nice grouping if take Feynrules program,
import the simple SM (sm.fr) included therein and export it as a SM_UFO then do:
./bin/mg5
import model SM_UFO
generate p p > j j
output dijet2
now dijet2 folder contains about 40 subfolders of subprocesses.
my question is why the nice grouping of the diagrams was not performed in the same way
as when using the default mg5 SM?
is the the UFO issue or is SM.fr written is such a way that this grouping is not possible?
thanks for the reply,
and all the best,
Jure
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- Olivier Mattelaer
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