3 ctfWithMaterialTrackMCMatch = cms.EDProducer(
"MCTrackMatcher",
4 trackingParticles = cms.InputTag(
"mix",
"MergedTrackTruth"),
5 tracks = cms.InputTag(
"ctfWithMaterialTracks"),
6 genParticles = cms.InputTag(
"genParticles"),
7 associator = cms.string(
'TrackAssociatorByHits')