pvSelectionSequence_cff.py

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import FWCore.ParameterSet.Config as cms

# one PV

goodVertices = cms.EDFilter("VertexSelector",
   src = cms.InputTag("offlinePrimaryVertices"),
#   cut = cms.string("!isFake && ndof >= 5 && abs(z) <= 15 && position.Rho <= 2"),  # old cut
#   cut = cms.string("!isFake && ndof >= 5 && abs(z) <= 24 && position.Rho <= 2"),  
   cut = cms.string("!isFake && ndof > 4 && abs(z) <= 30 && position.Rho <= 2"),  
   filter = cms.bool(False),   # otherwise it won't filter the events, just produce an empty vertex collection.
)

noFakeVertices = goodVertices.clone(cut=cms.string("!isFake"))

goodVerticesD0s5 = goodVertices.clone(src = "offlinePrimaryVerticesD0s5")
goodVerticesD0s51mm = goodVertices.clone(src = "offlinePrimaryVerticesD0s51mm")
goodVerticesDA100um = goodVertices.clone(src = "offlinePrimaryVerticesDA100um")
goodVerticesDA100umV7 = goodVertices.clone(src = "offlinePrimaryVerticesDA100umV7")
goodVerticesDA100umV8 = goodVertices.clone(src = "offlinePrimaryVerticesDA100umV8")


seqPVSelection = cms.Sequence(goodVertices + noFakeVertices + goodVerticesD0s5 + goodVerticesD0s51mm +
                              goodVerticesDA100um + goodVerticesDA100umV7 + goodVerticesDA100umV8  )
seqSimplePVSelection = cms.Sequence(goodVertices + noFakeVertices)