MadGraph5_aMC@NLO

g g > z z

Asked by Zhaowei Song

Hi
I'm generating g g > h > h h in SMEFTatNLO and the results include both NP=2 and NP=0 process
I wonder if's possible to remove NP=0 process and then launch.
Regard
zhaowei

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

The syntax "NP>0" is likely what you want.
so
g g > h > h h NP>0

Now, that syntax might not be compatible with all other syntaxes of MG5aMC.

Cheers,

Olivier

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Zhaowei Song (zhaowei12345678) said : 		#2

Sorry to bother you again.
The syntax NP>0 seems invalid here in mg5 .
MG5_aMC>generate g g > h > h h NP>0 [QCD]
Command "generate g g > h > h h NP>0 [QCD]" interrupted with error:
InvalidCmd : Amplitude order constraints (for not LO processes) can only be of type <=, not '>'.
I wonder if it is possible to specify trilinear Higgs coupling NP coupling.
Regard
Zhaowei

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Olivier Mattelaer (olivier-mattelaer) said : 		#3

Hi,

I guess that the following syntax is what you are looking for:

generate g g > h > h h NP^2>2 [noborn=QCD]

The NP^2 means that you apply the constraint after the squaring of two amplitudes (so not at a single diagram level)

Cheers,

Olivier

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