Opened 6 years ago
Closed 6 years ago
#1347 closed How to (fixed)
UniqueObjectFinder----lepton and jet overlap removal
| Reported by: | Ying-Ying Li | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | |
| Component: | Delphes code | Version: | Delphes 3 |
| Keywords: | Cc: |
Description
Hi,
My understanding for the Delphes default UniqueObjectFinder is: Delphes check whether inside a jet there is a lepton, if yes, then remove the jet. "inside" means the lepton overlaps with some constituent (GenParticle, Track or Tower component) of the jet, which equivalently means that DeltaR (lepton, jet) < ParameterR (jet). I am wondering whether my understanding is correct. It seems not consistent with the output when I loop over all lepton and jet after the UniqueObjectFinder, there are some pairs of lepton and jet with DeltaR (lepton, jet) < ParameterR (jet). Could you help me with this? Thank you very much.
Looking forward to hearing from you.
Best,
Ying-Ying
Change History (2)
comment:1 by , 6 years ago
comment:2 by , 6 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
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By default, Delphes uses the Overlap method to find if the objects overlap:
https://cp3.irmp.ucl.ac.be/projects/delphes/browser/git/modules/UniqueObjectFinder.cc#L148
https://cp3.irmp.ucl.ac.be/projects/delphes/browser/git/classes/DelphesClasses.cc#L212
There is no condition on DeltaR.