d2/d5b/generalV0Candidates__cfi_8py_source.html

 import FWCore.ParameterSet.Config as cms


 generalV0Candidates = cms.EDProducer("V0Producer",


    # which TrackCollection to use for vertexing

    trackRecoAlgorithm = cms.InputTag('generalTracks'),


    # which V0s to reconstruct

    doKShorts = cms.bool(True),

    doLambdas = cms.bool(True),


    # which vertex fitting algorithm to use

    # True -> KalmanVertexFitter (recommended)

    # False -> AdaptiveVertexFitter (not recommended)

    vertexFitter = cms.bool(True),


    # use the refitted tracks returned from the KVF for V0Candidate kinematics

    # this is automatically set to False if using the AdaptiveVertexFitter

    useRefTracks = cms.bool(True),


    # -- cuts on initial track collection --

    # Track normalized Chi2 <

    tkChi2Cut = cms.double(10.0),

    # Number of valid hits on track >=

    tkNHitsCut = cms.int32(7),

    # Pt of track >

    tkPtCut = cms.double(0.35),

    # Track impact parameter significance >

    tkIPSigCut = cms.double(2.0),


    # -- cuts on the vertex --

    # Vertex chi2 <

    vtxChi2Cut = cms.double(15.0),

    # Radial vertex significance >

    vtxDecayRSigCut = cms.double(10.0),


    # -- miscellaneous cuts --

    # POCA distance between tracks <

    tkDCACut = cms.double(2.0),

    # invariant mass of track pair - assuming both tracks are charged pions <

    mPiPiCut = cms.double(0.6),

    # check if either track has a hit radially inside the vertex position minus this number times the sigma of the vertex fit

    # note: Set this to -1 to disable this cut, which MUST be done if you want to run V0Producer on the AOD track collection!

    innerHitPosCut = cms.double(4.0),

    # cos(angle) between x and p of V0 candidate >

    v0CosThetaCut = cms.double(0.9998),


    # -- cuts on the V0 candidate mass --

    # V0 mass window +- pdg value

    kShortMassCut = cms.double(0.07),

    lambdaMassCut = cms.double(0.05)


 )


Config