IterativePixelLessStep_cff.py

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import FWCore.ParameterSet.Config as cms

# step 4

# seeding
#from FastSimulation.Tracking.IterativeFourthSeedProducer_cff import *
import FastSimulation.Tracking.TrajectorySeedProducer_cfi
iterativePixelLessSeeds = FastSimulation.Tracking.TrajectorySeedProducer_cfi.trajectorySeedProducer.clone()
iterativePixelLessSeeds.firstHitSubDetectorNumber = [3]
iterativePixelLessSeeds.firstHitSubDetectors = [3, 4, 6]
iterativePixelLessSeeds.secondHitSubDetectorNumber = [3]
iterativePixelLessSeeds.secondHitSubDetectors = [3, 4, 6]
iterativePixelLessSeeds.thirdHitSubDetectorNumber = [0]
iterativePixelLessSeeds.thirdHitSubDetectors = []
iterativePixelLessSeeds.seedingAlgo = ['PixelLessPairs']
###iterativePixelLessSeeds.minRecHits = [5]
iterativePixelLessSeeds.minRecHits = [3]
iterativePixelLessSeeds.pTMin = [0.3]
#cut on fastsim simtracks. I think it should be removed for the 4th step
#iterativePixelLessSeeds.maxD0 = [20.]
#iterativePixelLessSeeds.maxZ0 = [50.]
iterativePixelLessSeeds.maxD0 = [99.]
iterativePixelLessSeeds.maxZ0 = [99.]
#-----
iterativePixelLessSeeds.numberOfHits = [2]
#values for the seed compatibility constraint
iterativePixelLessSeeds.originRadius = [2.0]
iterativePixelLessSeeds.originHalfLength = [10.0]
iterativePixelLessSeeds.originpTMin = [0.6] # was 0.5
iterativePixelLessSeeds.zVertexConstraint = [-1.0]
iterativePixelLessSeeds.primaryVertices = ['none']

# candidate producer
#from FastSimulation.Tracking.IterativeFourthCandidateProducer_cff import *
import FastSimulation.Tracking.TrackCandidateProducer_cfi
iterativePixelLessTrackCandidates = FastSimulation.Tracking.TrackCandidateProducer_cfi.trackCandidateProducer.clone()
iterativePixelLessTrackCandidates.SeedProducer = cms.InputTag("iterativePixelLessSeeds","PixelLessPairs")
iterativePixelLessTrackCandidates.TrackProducers = ['initialStepTracks', 'lowPtTripletStepTracks', 'pixelPairStepTracks', 'detachedTripletStepTracks','mixedTripletStepTracks'] # add 0 and 0.5 ?
iterativePixelLessTrackCandidates.KeepFittedTracks = False
iterativePixelLessTrackCandidates.MinNumberOfCrossedLayers = 6 # was 5


# track producer
#from FastSimulation.Tracking.IterativeFourthTrackProducer_cff import *
import RecoTracker.TrackProducer.CTFFinalFitWithMaterial_cfi
iterativePixelLessTracks = RecoTracker.TrackProducer.CTFFinalFitWithMaterial_cfi.ctfWithMaterialTracks.clone()
iterativePixelLessTracks.src = 'iterativePixelLessTrackCandidates'
iterativePixelLessTracks.TTRHBuilder = 'WithoutRefit'
##iterativePixelLessTracks.Fitter = 'KFFittingSmootherWithOutlierRejection'
iterativePixelLessTracks.Fitter = 'KFFittingSmootherFourth'
iterativePixelLessTracks.Propagator = 'PropagatorWithMaterial'


# track merger
#from FastSimulation.Tracking.IterativeFourthTrackMerger_cfi import *
pixelLessStepTracks = cms.EDProducer("FastTrackMerger",
                                     TrackProducers = cms.VInputTag(cms.InputTag("iterativePixelLessTrackCandidates"),
                                                                    cms.InputTag("iterativePixelLessTracks")),
                                     RemoveTrackProducers =  cms.untracked.VInputTag(cms.InputTag("initialStepTracksr"),
                                                                                     cms.InputTag("lowPtTripletStepTracks"),   
                                                                                     cms.InputTag("pixelPairStepTracks"),   
                                                                                     cms.InputTag("detachedTripletStepTracks"),     
                                                                                     cms.InputTag("mixedTripletStepTracks")),     
                                     trackAlgo = cms.untracked.uint32(9),
                                     MinNumberOfTrajHits = cms.untracked.uint32(6), # was 5
                                     MaxLostTrajHits = cms.untracked.uint32(0)
                                     )

# track selection
import RecoTracker.FinalTrackSelectors.multiTrackSelector_cfi
pixelLessStepSelector = RecoTracker.FinalTrackSelectors.multiTrackSelector_cfi.multiTrackSelector.clone(
        src='pixelLessStepTracks',
            trackSelectors= cms.VPSet(
            RecoTracker.FinalTrackSelectors.multiTrackSelector_cfi.looseMTS.clone(
                name = 'pixelLessStepLoose',
                            chi2n_par = 0.5,
                            res_par = ( 0.003, 0.001 ),
                            minNumberLayers = 5,
                            maxNumberLostLayers = 1,
                            minNumber3DLayers = 3,
                            d0_par1 = ( 1.5, 4.0 ),
                            dz_par1 = ( 1.5, 4.0 ),
                            d0_par2 = ( 1.5, 4.0 ),
                            dz_par2 = ( 1.5, 4.0 )
                            ),
                    RecoTracker.FinalTrackSelectors.multiTrackSelector_cfi.tightMTS.clone(
                name = 'pixelLessStepTight',
                            preFilterName = 'pixelLessStepLoose',
                            chi2n_par = 0.35,
                            res_par = ( 0.003, 0.001 ),
                            minNumberLayers = 5,
                            maxNumberLostLayers = 0,
                            minNumber3DLayers = 3,
                            d0_par1 = ( 1.2, 4.0 ),
                            dz_par1 = ( 1.2, 4.0 ),
                            d0_par2 = ( 1.2, 4.0 ),
                            dz_par2 = ( 1.2, 4.0 )
                            ),
                    RecoTracker.FinalTrackSelectors.multiTrackSelector_cfi.highpurityMTS.clone(
                name = 'pixelLessStep',
                            preFilterName = 'pixelLessStepTight',
                            chi2n_par = 0.25,
                            res_par = ( 0.003, 0.001 ),
                            minNumberLayers = 5,
                            maxNumberLostLayers = 0,
                            minNumber3DLayers = 3,
                            d0_par1 = ( 1., 4.0 ),
                            dz_par1 = ( 1., 4.0 ),
                            d0_par2 = ( 1., 4.0 ),
                            dz_par2 = ( 1., 4.0 )
                            ),
                    ) #end of vpset
            ) #end of clone


# sequence
iterativePixelLessStep = cms.Sequence(iterativePixelLessSeeds+
                                      iterativePixelLessTrackCandidates+
                                      iterativePixelLessTracks+
                                      pixelLessStepTracks+
                                      pixelLessStepSelector)