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The reconstruction Driver chain is defined in production steering files such as EngineeringRun2015FullRecon.lcsim, which are kept in this SVN folder and typically accessed as a class resource from a jar file.

saves AIDA plots to file at end of job

Order	Driver Name	Driver Class	Description
1	RfFitter	RfFitterDriver	converts accelerator's RF wave form to time and inserts into event
2	EcalRunningPedestal	EcalRunningPedestalDriver	calculates per channel running averages for ECal signal pedestals
3	EcalRawConverter	EcalRawConverterDriver	converts ECal digits to CalorimeterHit collection with energy and time measurements
4	ReconClusterer	ReconClusterDriver	performs calorimeter clustering algorithm on ECal hits
5	CopyCollection	CopyClusterCollectionDriver	copies calorimeter clusters to new collection to preserve uncorrected energy measurements
6	RawTrackerHitSensorSetup	RawTrackerHitSensorSetup	assigns RawTrackerHits to their sensors for use by track recon
7	RawTrackerHitFitterDriver	RawTrackerHitFitterDriver	fits ADC vs time signal to produce fitted hits collection
8	TrackerHitDriver	DataTrackerHitDriver	creates stereo pairs from from SVT strip hits
9	HelicalTrackHitDriver	HelicalTrackHitDriver	creates 3D hits from clusters of stereo pairs
10	TrackReconSeed345Conf2Extd16	TrackerReconDriver	runs track finding using layers 3, 4 & 5 as a seed, layer 2 to confirm, and layers 1 and 6 to extend
11	TrackReconSeed456Conf3Extd21	TrackerReconDriver	runs track finding using layers 4, 5 & 6 as a seed, layer 3 to confirm, and layers 2 and 1 to extend
12	TrackReconSeed123Conf4Extd56	TrackerReconDriver	runs track finding using layers 1, 2 & 3 as a seed, layer 4 to confirm, and layers 5 and 6 to extend
13	TrackReconSeed123Conf5Extd46	TrackerReconDriver	runs track finding using layers 1, 2 & 3 as a seed, layer 5 to confirm, and layers 4 and 6 to extend
14	MergeTrackCollections	MergeTrackCollections	merge collections from track finding into single output collection
15	GBLRefitterDriver	GBLRefitterDriver	performs GBL track refit
16	TrackDataDriver	TrackDataDriver	adds additional collections containing track information to output event
17	ReconParticleDriver	HpsReconParticleDriver	creates output reconstructed particle collection, associating tracks with clusters also performs vertex reconstruction
18	LCIOWriter	LCIODriver	writes output LCIO file
19	CleanupDriver	ReadoutCleanupDriver	cleanup readout state for next event (clears assignments of SVT raw hits to sensors)	AidaSaveDriver	AidaSaveDriver

Data Collections

Collection	Java Class	Created By	Description
BeamspotConstrainedMollerCandidates	ReconstructedParticle	HpsReconParticleDriver	Møller candidate particles required to point back to beamspot at the target
BeamspotConstrainedMollerVertices	Vertex	HpsReconParticleDriver	Møller vertices required to point back to beamspot at the target
BeamspotConstraintedV0Candidates	ReconstructedParticle	HpsReconParticleDriver	electron-positron candidate particles required to point back to beamspot at the target
BeamspotConstraintedV0Vertices	Vertex	HpsReconParticleDriver	electron-positron vertices required to point back to beamspot at the target
EcalCalHits	CalorimeterHit	EcalRawConverterDriver	calibrated ECal Hits
EcalClusters	Cluster	ReconClusterDriver	reconstructed ECal clusters with uncorrected energies
EcalClustersCorr	Cluster	CopyClusterCollectionDriver	reconstructed ECal clusters with corrected energies
EcalReadoutHits	RawTrackerHit	EcalEvioReader	ECal Hits in ADC counts
EpicsData	GenericObject	LCSimEngRunEventBuilder	EPICS data banks
FADCGenericHits	GenericObject	EcalEvioReader	additional FADC readout information
FinalStateParticles	ReconstructedParticle	HpsReconParticleDriver	final state particles (electrons, positrons, photons) with 4-momenta
GBLKinkData	GenericObject	GBLRefitterDriver	extra GBL track kink data
GBLKinkDataRelations	LCRelation	GBLRefitterDriver	relation from GBLTracks to GBLKinkData
GBLTracks	Track	GBLRefitterDriver	tracks created from GBL refit
HelicalTrackHitRelations	LCRelation	HelicalTrackHitDriver	relation from HelicalTrackHits to StripClusterer_SiTrackerHitStrip1D
HelicalTrackHits	TrackerHit	HelicalTrackHitDriver	3D hits combining StripClusterer_SiTrackerHitStrip1D hits in axial/stereo layers
MatchedToGBLTrackRelations	LCRelation	GBLRefitterDriver	relation from MatchedTracks to GBLTracks
MatchedTracks	Track	TrackerReconDriver	primary collection of reconstructed tracks merged from collections with tracks generated from different strategies
PartialTracks	Track	MergeTrackCollections	collection of tracks which have a set of hits that are a strict subset of another track
RotatedHelicalTrackHitRelations	LCRelation	HelicalTrackHitDriver	relation from RotatedHelicalTrackHit to HelicalTrackHit
RotatedHelicalTrackHits	TrackerHit	HelicalTrackHitDriver	HelicalTrackHits rotated into SeedTracker tracking frame: x→y, y→z, z→x
SVTFittedRawTrackerHits	LCRelation	RawTrackerHitFitterDriver	relation from SVTRawTrackerHits to SVTShapeFitParameters
SVTRawTrackerHits	RawTrackerHit	SvtEvioReader	Si sensor single strip hits
SVTShapeFitParameters	GenericObject	RawTrackerHitFitterDriver	results of the ADC vs sample number fits for SVT data
StripClusterer_SiTrackerHitStrip1D	TrackerHit	DataTrackerHitDriver	1D Si strip clusters
TargetConstrainedMollerCandidates	ReconstructedParticle	HpsReconParticleDriver	Møller candidate particles with the vertex z fixed to the target position and (x,y) constrained to beamspot
TargetConstrainedMollerVertices	Vertex	HpsReconParticleDriver	Møller vertices with the vertex z fixed to the target position and (x,y) constrained to beamspot
TargetConstrainedV0Candidates	ReconstructedParticle	HpsReconParticleDriver	electron-positron pairs with the vertex z fixed to the target position and (x,y) constrained to beamspot
TargetConstrainedV0Vertices	Vertex	HpsReconParticleDriver	electron-positron vertices with the vertex z fixed to the target position and (x,y) constrained to beamspot
TrackData	GenericObject	TrackDataDriver	additional track information
TrackDataRelations	LCRelation	TrackDataDriver	relation from TrackData to a Track
TrackResiduals	GenericObject	TrackDataDriver	X & Y track residuals calculated at the stereo hit position
TrackResidualsRelations	LCRelation	TrackDataDriver	relation from TrackResiduals to a Track
TriggerBank	GenericObject	LCSimEngRunEventBuilder	trigger information for the event
UnconstrainedMollerCandidates	ReconstructedParticle	HpsReconParticleDriver	Møller particle candidates with unconstrained vertex
UnconstrainedMollerVertices	Vertex	HpsReconParticleDriver	unconstrained Møller vertices
UnconstrainedV0Candidates	ReconstructedParticle	HpsReconParticleDriver	electron-positron pairs with unconstrained vertex
UnconstrainedV0Vertices	Vertex	HpsReconParticleDriver	unconstrained electron-positron vertices

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Data Collections