MadGraph5_aMC@NLO

Weight of a process without generator level cut

Asked by Chiara Iannetta

Hi

My question is the following: I generated a process like p p > w+w-; then I edited the run setting the line

{'24': 500.0} = mxx_min_pdg ! min invariant mass of a pair of particles X/X~ (e.g. {6:250})

Now, I easily get the cross section for this process(~3pb), but is it possible to obtain the cross section for the same simulation without the generator cut (~64pb)? Is this cross section stored in some file?

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Olivier Mattelaer
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Best Olivier Mattelaer (olivier-mattelaer) said : 		#1

Not in that direction no.

From the one without cut, you can get the one with the cut (by applying the cut on the generated event sample --increasing off course the statistical uncertainty--)
But you can not do the opposite.

Cheers,

Olivier

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Chiara Iannetta (chiaraiannetta) said : 		#2

Thanks Olivier Mattelaer, that solved my question.