fix in PFJetID calculation due to change in PFJet fraction calculation #6744
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A new Pull Request was created by @webermat for CMSSW_7_4_X. fix in PFJetID calculation due to change in PFJet fraction calculation It involves the following packages: PhysicsTools/SelectorUtils @cmsbuild, @vadler, @nclopezo, @monttj can you please review it and eventually sign? Thanks. |
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This pull request is fully signed and it will be integrated in one of the next CMSSW_7_4_X IBs unless changes (tests are also fine). This pull request will be automatically merged. |
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fix in PFJetID calculation due to change in PFJet fraction calculation
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In 7_3_0_pre1 the PFJet Fractions changed, from then on the NeutralHadronEnergy is the sum of the former NeutralHadronEnergy+HFHadronEnergy; same holds for the NeutralHadronEnergyFraction.
The PFJetIDSelectionFunctor has been now updated to accomodate this feature. The effects are especially prominent if we compare MiniAOD with RECO, since the calculation of the PFJetID is done in slightly different ways, more details can be found in
https://indico.cern.ch/event/294180/contribution/4/material/slides/0.pdf
slide 9 before the fix.
slide 11 illustrates the feature
slide 12 shows the expected agreement between RECO and MiniAOD formats, and the expected increase of the passFraction for forward Jets.