Opened 5 years ago
Last modified 5 years ago
#1411 new Task
About using HepMC file created by EvtGen in Delphes
| Reported by: | Xiang Li | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | |
| Component: | Delphes code | Version: | Delphes 3 |
| Keywords: | Cc: |
Description
Dear Colleagues,
I’m currently trying to use Delphes with HepMC file(HepMC2) created by EvtGen, the decay is vpho to tautauee. There is no error reported, but the ROOT file created by DelphesHepMC contains no message of the particle e. That is to say, the tree particle_e(and particle_muon) contains no data, all event were judged to missing energe.
I don't understand why, cause there is some HepMC files working well with Delphes. Could you give me some advice about using Delphes with EvtGen?
My EvtGen was downloaded on https://evtgen.hepforge.org/. And here are decay file using in EvtGen and the HepMC file created by EvtGen
Attachments (3)
Change History (7)
by , 5 years ago
| Attachment: | TAUTAUEE.DEC added |
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follow-up: 2 comment:1 by , 5 years ago
by , 5 years ago
| Attachment: | tautauEE.7z added |
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comment:2 by , 5 years ago
Replying to pavel:
Please provide a small (~10 events) HepMC file that could be used to reproduce the problem.
sorry, yesterday night my internet was poor that I didn't see your message.
Is it fine to reproduce the problem using the file tautauEE.7z? And I will upload a small HepMC file soon.
by , 5 years ago
| Attachment: | tautauEE_short.hepmc added |
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follow-up: 4 comment:3 by , 5 years ago
Thank you for the small HepMC file. I've just checked it and I see that the PT of the electrons is less than 10 GeV.
In both delphes_card_ATLAS.tcl and delphes_card_CMS.tcl configuration files, the electron reconstruction efficiency is 0 for PT less than 10 GeV. So, that is why there is no electrons in the Electron branch.
I also noticed another problem. Normally, Delphes expects an input file containing events after parton-showering and hadronization. I think that this is not the case with your HepMC file.
comment:4 by , 5 years ago
Thank you for help!
I will try to check my MCgenerator to fix the problems.
Please provide a small (~10 events) HepMC file that could be used to reproduce the problem.