Comment 6 for bug 1949450

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Olivier Mattelaer (olivier-mattelaer) wrote :

Hi,

What I have done so far is a (not bullet proof) but I check when some coupling does depend on aS but does not have a QCD flag. (Not bullet proof since I do not check the case where the power is incorrect)

If this situation appears then I print the following message:
WARNING: coupling GC_3002h=-complex(0,1)*cosa*kHgg*gHgg has direct dependence in aS but has QCD order set to 0. Automatic computation of scale uncertainty can be wrong for such model.
WARNING: To fix the coupling order of the model, please run customize_model set_coupling_order
WARNING: coupling GC_3002a=-sina*kAgg*complex(0,1)*gAgg has direct dependence in aS but has QCD order set to 0. Automatic computation of scale uncertainty can be wrong for such model.
WARNING: To fix the coupling order of the model, please run customize_model set_coupling_order

As you can see from this warning, I want to allow to fix automatically the model via a command
but the command is not yet implemented (and the command syntasx might change)

The idea here would be to set the QCD coupling order to the power of aS (which will impact the syntax needed to generate the events in some cases)

Cheers,

Olivier