VARIABLES.md

Available variables

Definitions:

ElectronIDHelper * eIDHelper_;
float radius = 3.; // cylinder radius around shower axis
eIDHelper_->computeHGCAL(electron,radius);

LongDeps ld(eIDHelper_->energyPerLayer(radius,true));

float measuredDepth, expectedDepth, expectedSigma;
float depthCompatibility = eIDHelper_->clusterDepthCompatibility(ld,measuredDepth,expectedDepth, expectedSigma);

In case of gsfElectrons, all shower variables are calculated for the electron.electronCluster() object.

Variable	For ID	Description	Access method
		Cluster shapes
sigmaUU	✅	Perpendicular cluster spread	eIDHelper_->sigmaUU()
sigmaVV	✅	Radial cluster spread	eIDHelper_->sigmaVV()
sigmaEE	❌	Cluster spread in eta	eIDHelper_->sigmaEE()
sigmaPP	❌	Cluster spread in phi	eIDHelper_->sigmaPP()
		Longitudinal / energy
nLayers	✅	Numer of layers in cluster	ld.nLayers()
firstLayer	✅	First layer of cluster	ld.firstLayer()
lastLayer	❌	Last layer of cluster	ld.lastLayer()
layEfrac10	✅	First layer with 10% energy in EE	To be added, present in ntuple
layEfrac90	✅	First layer with 90% energy in EE	To be added, present in ntuple
layerEnergy	❌	Energy per layer	ld.energy(layer)
energyEE	❌	Energy within cylinder in EE	ld.energyEE()
energyFH	❌	Energy within cylinder in EE	ld.energyFH()
energyBH	❌	Energy within cylinder in EE	ld.energyBH()
FHoverE	✅	Energy within cylinder in EE	energyFH/energyEE
HoverE	✅	Energy within cylinder in EE	(energyFH+energyBH)/energyEE
		Depth compatibility
measuredDepth	✅	Measured shower depth	See above
expectedDepth	✅	Expected shower depth	See above
expectedSigma	✅	Expected shower depth sigma	See above
depthCompatibility	✅	Depth compatibility	See above

Additional global variables

| n_vtx | ✅ | Number of reco vertices | See inputTag offlinePrimaryVertices |

Additional variables for gsfElectrons

KF track requires:

reco::TrackRef myTrackRef = ele.closestCtfTrackRef();
  validKF = (myTrackRef.isAvailable());
  validKF = (myTrackRef.isNonnull());  

Variable	For ID	Description	Access method
		Track-based	Also available from gsfEle directly
pOut	✅	Track momentum (Pout)	eIDHelper_->trackMomentumAtEleClus()
eOverPout	✅	Electron cluster energy over Pout	eIDHelper_->eEleClusterOverPout()
		Cluster-track matching
deltaEta	✅	dEta between Pout and cluster	eIDHelper_->deltaEtaEleClusterTrackAtCalo()
deltaPhi	✅	dPhi between Pout and cluster	eIDHelper_->deltaPhiEleClusterTrackAtCalo()
		Track properties
eta	✅	Track eta	electron.eta()
fbrem	✅	(Pin-Pout)/Pin	electron.fbrem()
gsfChi2	✅	Chi^2 of GSF track	ele.gsfTrack()->normalizedChi2()
kfChi2	✅	Chi^2 KF track	myTrackRef->normalizedChi2()
kfNhits	✅	Number of hits for GSF track	myTrackRef->hitPattern().trackerLayersWithMeasurement()