SMEFT@NLO squared order problem in mG5

Asked by EliDorri

Hi, I want to calculate four-fermion operators contribution to top pair production like the table1 in 2008.11743v2.i do this madGraph :

import model SMEFRatNLO-LO
generate p p > t t~ QED=0 QCD=2 NP=2 NP^2==2 ,
it gives me the same value in paper at linear levels at LO, but for NLO calculation i ran into error when i enter this command :
import model SMEFTatNLO-NLO
generate p p > t t~ QCD=2 QED=0 NP=2 NP^2==2 [QCD]
the error is :
Error detected in "generate p p > t t~ QCD=2 QED=0 NP=2 NP^2==2 [QCD]"
write debug file MG5_debug
If you need help with this issue please contact us on https://answers.launchpad.net/mg5amcnlo
str : The squared-order constraints passed are not '<='.
  Other kind of squared-order constraints are not supported at NLO
Thank you
Eli Dorri

Question information

Language:
English Edit question
Status:
Open
For:
MadGraph5_aMC@NLO Edit question
Assignee:
Eleni Vryonidou Edit question
Last query:
Last reply:

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