Jet Information

All the listed variables/functions below are public.

TStnJetBlock:

• (TStnJet*) Jet(int i) : Returns the ith jet in an event.
• (Float) fConeSize/ConeSize() : Returns cone size as determined in eta vs phi coordinates.
• (Integer) fNJets / NJets() : Number of jets candidates.
• (Integer) fNJets10 : Number of jets with Et > 10 GeV
• (Integer) fNJets15 : Number of jets with Et > 15 GeV
• (Integer) fNJets20 : Number of jets with Et > 20 GeV
• (Integer) fNJets25 : Number of jets with Et > 25 GeV

TStnJet:

• (Double) fDteta / DetEta() : detector eta of jet
• (Double) EmFract() / fEmf : Electromagnetic fraction of jet energy
• (Doulbe) EOverP() : Energy divided by Momentum
• (Double) fEt / Et() : uncorrected net Et of jet
• (TLorentzVector) Momentum() : Jet's four vector
• (Float) SeedEt() : ???
• (Int) SeedEta() : ???
• (Int) SeedPhi() : ???
• (Float) fM : mass of jet
• (Float) fEveta : event eta of jet
• (Float) fPhi : phi of jet in radians
• @(Float) fWord : checks for correspondance between a given jet and other objects in the ntuple.
  Check here for more info.
• @(Float) fCorfm : Energy correction factor- underlying event correction,multiple vertex correction, out-of-cone correction, absolute energy scale correction
• @(Float) fCorfd : Same as above without underlying event correction or out of cone correction
• @(Float) fCorfa : Correction factor - ???
• (Float) fNtr : number of tracks
• @(Float) fNtrp : number of jets with positive impact paramater
• (Float) fEp : ratio of jet energy to highest track momentum for tracks within a cone of .4 of the jet axis
• @(Float) fNjtrk0 : number of tracks in the jet used by SECVTX
• @(Float) fTag : Set to 1 if certain tagging algorithms are passed. See here for more details
• (Float) fEgrd : energy deposited in towers next to cracks
• @(Float) fVbpb : background probability of JETVTX
• @(Float) fPbpb : background probability of JPBTAG
• @(Float) fScbpb : background probability of SECVTX
• @(Float) fScnpb : negative tag background probability for SECVTX (yields Method 2 fake backgd)
• @(Float) fPppb : JPBTAG positive tagging probability for jet
• @(Float) fPnpb : JPBTAG negative tagging probability for jet
• @(Float) fTau1 : tau background probability for 1-tracks (not filled yet)
• @(Float) fTau2 : tau background probability for 2-tracks (not filled yet)
• (Float) fZvtx : z vertex position from tracks pointing at jet
• @(Float) fDz : RMS of Z0's from tracks pointing at jet
• @(Float) fPtout : sum pt of tracks pointing at jet
• (Float) fVpt : Sum pt for tracks pointing at both vertex and jet.
  See here for more details
• @(Float) fNovpt : See above
• @(Int) fMatch : ???