Photon Information

All the listed variables/functions below are public.

TStnPhotonBlock:

• (TStnPhoton*) Photon(int i) : Returns photon candidate i.
• (Integer) fNPhotons / NPhotons() : Number of photon candidates.
• (Integer) fNcencl : Number of central EmClusters ?
• (Integer) NPlugcl ?
• (Integer) fNphoidl : Plug EmClusters passing loose photon ID ?
• (Integer) fNphoisol : Plug EmClusters passing loose photon ID and loose isolation cuts ?
• (Integer) fNphoid : Central EmClusters passing Jeff's photon ID cuts ?
• (Integer) fNphoiso : Central EmClusters passing Jeff's photon ID cuts and a cone isolation cut ?

TStnPhoton:

• (Integer) fDetector : Detector hit by photon; 0 = CEM, 1 = PEM
• (Float) fZv : z coordinate of vertex
• (Float) fEt : uncorrected transverse energy of cluster
• (Float) fEtc : corrected transverse energy of cluster
• (TLorentzVector) fMomentum / (TLorentzVector*) Momentum() : corrected (?) 4-momentum of cluster
• (Float) fCo4 : Et in a cone of 0.4, not including EM cluster
• (Float) fCo4PJW : Et in cone of 0.4, not including EM cluster, corrected for phi leakage and multiple vertices (see CDF 4170)
• (Float) fCesx : CES cluster position in local coordinates (r-phi)
• (Float) fCesz : CES cluster position in CDF coordinates
• (Float) fCpr5ph : CPR cluster charge in fC for 5-channel group
• (Float) fCpr5ps : CPR cluster position in local coordinates (r-phi) when extrapolated to the CES, using a 5-channel group in the CPR
• (Float) fDteta : cluster detector eta (from CES position)
• (Float) fEveta : cluster event eta, using CES position and event vertex
• (Float) fCese : Et of the cluster from CES wires
• (Float) fPhi : phi of cluster from CES position
• (Float) fCo7 : Et in a cone of 0.7, not including EM cluster
• (Float) fHadem : HAD/EM
• (Float) fLshr : Lshr from EmCluster ?
• (Float) fStr2 : second CES strip cluster position in local coordinates (z)
• (Float) fStre2 : energy of second CES strip cluster
• (Float) fWwir2 : second CES wire cluster position in CDF coordinates (r-phi)
• (Float) fWire2 : energy of second CES wire cluster
• (Float) fSumpt4 : Sum of Pt of 3-D tracks in cone of 0.4
• (Float) fVtxocc : VTX occupancy of PEM cluster
• (Float) fPt : Pt of track associated with cluster
• (Integer) fN3d : number of 3-D tracks point to cluster
• (Float) fChi : average χ² = (fChistr + fChiwir)/2
• (Float) fChi3x3 : 3x3 χ² for PEM
• (Float) fChieta : eta χ² for PES
• (Float) fChiphi : phi χ² for PES
• (Float) fStat : Photon status code
• (Float) fBoxiso : Sum of energy in 3x3 trigger tower group around the photon, excluding EM cluster energy
• (UInteger) fCesflg : 1 if passes sliding no-second-CES-cluster cut
• (Float) fE : uncorrected cluster energy
• (Float) fCeswht : CES χ² weighting for background
• (Float) fCprwht : CES hit weighting for background
• (Float) fCesslide : Sliding no-second-CES-cluster cut value
• (Integer) fWrd : bit mask of cuts that failed (see here for details)
• (Float) fSth : sin θ of cluster using CES and vertex
• (Integer) fElind : index of electron that matches the photon
• (Float) fChistr : photon strip χ²
• (Float) fChiwir : photon wire χ²
• (Float) fCessig : Bob Blair's CES energy significance
• @(Float) fCespg : photon probability, CES method
• @(Float) fCespb : background probability, CES method
• @(Float) fCprpg : photon probability, CPR method
• @(Float) fCprpb : background probability, CPR method
• (Float) fPt2 : Pt of the second highest Pt track pointing at cluster
• (Integer) fNtrwd3 : Number of tracks pointing at CPR cluster
• (Float) fCescprx : CES local x extrapolated to CPR radius
• (Float) fCescprq : ?
• (Float) fTkcprx : local x of track with closest extrapolation to CES hit
• (Float) fTime : timing of HAD TDC's for cluster
• (Float) fVcor : correction to fCo4 due to multiple interactions
• (Float) fLcor : correction to fCo4 due to calorimeter leakage
• (Float) fPesE : PES 2-d u energy + v energy
• (Float) fPesX : PES 2-d position
• (Float) fPesY : ?
• (Float) EIso4(int flag) : isolation energy in cone of 0.4 with corrections. flag = 0 : no corrections; flag = 1: correct for leakage; flag = 2: correct for leakage and multiple interactions.

TStnMuonBlock:

• (Integer) fCostub / Costub() : number of cosmic stubs
• (Integer) fNCmus / NCmus() : number of CMU/CMP stubs ?