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Opened 7 years ago

Closed 7 years ago

#198 closed Bug (fixed)

Pileup btagging

Reported by: giancarlo.panizzo@… Owned by:
Priority: minor Milestone:
Component: Delphes code Version: Delphes 3
Keywords: Cc:


Dear Delphes team,

I'm trying to use the Pile Up functionality in Delphes 3.0.9. I've created a MinimumBias? file with Pythia 8. My problem is that everything go well except for the fact that no btagged jet are present in the delphes tree, when using a card without pileup gives a completely different situation. Is there something physical I cannot understand or it's a Delphes problem?

Thank you

Giancarlo Panizzo

Attachments (1)

MinBias.pileup (7.1 MB) - added by giancarlo.panizzo@… 7 years ago.

Change History (4)

Changed 7 years ago by giancarlo.panizzo@…

comment:1 Changed 7 years ago by mselvaggi

Hi Giancarlo,

are you using the default delphes_card_CMS_PileUp.tcl?
If yes, you should change the following line in the card at B-tagging/Tau tagging modules level (lines 569,603):

set JetInputArray FastJetFinder/jets


set JetInputArray JetPileUpSubtractor/jets

Does this solve your issue? In the next release this typo will be fixed. Sorry for the inconvenience.


comment:2 Changed 7 years ago by giancarlo.panizzo@…

I'm using an home made card generated merging CMS_PileUp and ATLAS cards, and yes, this solves the problem!
Thank a lot

Giancarlo Panizzo

comment:3 Changed 7 years ago by pavel

  • Resolution set to fixed
  • Status changed from new to closed

Fixed CMS and ATLAS pile-up cards are available in the new release 3.0.10.

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