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File indexing completed on 2024-04-06 12:27:37

0001 import FWCore.ParameterSet.Config as cms
0002 
0003 particleFlowDisplacedVertexCandidate = cms.EDProducer("PFDisplacedVertexCandidateProducer",
0004 
0005 
0006     # The track collection use for the fitting. May be any collection.
0007     # The only condition is that it shall contain the hit pattern information
0008     trackCollection  = cms.InputTag("generalTracks"),
0009 
0010     # verbosity 
0011     verbose = cms.untracked.bool(False),
0012                                    
0013     # Debug flag
0014     debug = cms.untracked.bool(False),
0015 
0016     # maximum dca distance for two tracks to be linked                                   
0017     dcaCut = cms.double(0.5),
0018 
0019     # minimum distance of secondary vertex with respect to the primary
0020     primaryVertexCut = cms.double(1.8),
0021 
0022     # maximum distance between the DCA Point and the inner hit of the track
0023     # not used for the moment
0024     dcaPInnerHitCut = cms.double(1000.0),
0025 
0026     # Primary vertex information used for dxy calculation
0027     mainVertexLabel = cms.InputTag("offlinePrimaryVertices", ""),
0028     offlineBeamSpotLabel = cms.InputTag("offlineBeamSpot", ""),
0029 
0030     # Tracks preselection to reduce the combinatorics in PFDisplacedVertexCandidates
0031     # this cuts are repeated then in a smarter way in the PFDisplacedVertexFinder
0032     # be sure you are consistent between them.
0033     tracksSelectorParameters = cms.PSet(
0034     # selection parameters for secondary tracks
0035         nChi2_max = cms.double(5.),
0036         pt_min = cms.double(.2),
0037     # if the tracks is not a good candidate to be a secondary (dxy cut) restrict in minimal pt
0038     # this cut reduce drastically the combinatorics. It is very useful to reduce the
0039     # PFDisplacedVertex timing
0040         pt_min_prim = cms.double(.8),
0041         dxy = cms.double(.2),
0042         
0043     )                                                     
0044                                    
0045 )
0046 
0047