Opened 5 years ago
Last modified 5 years ago
#1399 new Bug
Jet clustering possibly incomplete?
| Reported by: | Beojan Stanislaus | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | |
| Component: | Delphes code | Version: | Delphes 3 |
| Keywords: | Cc: | beojan.stanislaus@… |
Description
When I take (generator level) jets produced with Anti-kt, R = 0.4, and no minimum pT requirement, and cluster these again with FastJet with the same configuration (Anti-kt R = 0.4, and no minimum pT when getting the inclusive_jets), I often find that two of the original jets are clustered into one new jet. The delta_R between these original jets is less than 0.4 (generally around 0.38 or 0.39).
Change History (2)
comment:1 by , 5 years ago
| Cc: | added |
|---|---|
| Priority: | minor → major |
comment:2 by , 5 years ago
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Hi,
the jet clustering in Delphes uses FastJet so I do not see what can possibly go wrong. This seems more an issue related to FastJet.
This said, the module that performs jet clustering is in modules/FastJetFinder.cc. Can you try to debug from there?