MadGraph5_aMC@NLO

how to extract weight from delphes root file

Asked by Rui Zhang on 2020-11-09

From parton level file, the "Event" branch can be converted into TRootLHEFEvent, as TRootLHEFEvent is defined in ExRootAnalysis.

But when I try TRootLHEFEvent for delphes level file and extract the "Weight", the results appear to be -nan. Maybe because the TRootLHEFEvent don't have some other members, like "Scale".

I also checked files in ExRootAnalysis, and didn't find suitable class.

Can you offer some help? Thank you!

Question information

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MadGraph5_aMC@NLO Edit question
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Last query:
2020-11-09
Last reply:
2020-11-09
Olivier Mattelaer (olivier-mattelaer) said : #1

I will not be able to offer any help on that direction since this is outside my/our area of expertise.
Depending of the tools you use (Delphes or ExRootAnalysis) I would suggest to contact the associated author
(on github for Delphes, and direct email to pavel Demin for ExRootAnalysis)

Cheers,

Olivier

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